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Espionage, spying, or intelligence gathering, as a subfield of the
intelligence field The Intelligence field is the top-level field which involves the systematic espionage, Intelligence analysis, analysis, and Intelligence dissemination management, dissemination of Intelligence (information), intelligence to support Policymaker, po ...
, is the act of obtaining secret or
confidential information Confidentiality involves a set of rules or a promise sometimes executed through non-disclosure agreement, confidentiality agreements that limits the access to or places restrictions on the distribution of certain types of information. Legal con ...
(
intelligence Intelligence has been defined in many ways: the capacity for abstraction, logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving. It can be described as t ...
). A person who commits espionage on a mission-specific contract is called an ''espionage agent'' or ''spy''. A person who commits espionage as a fully employed officer of a government is called an
intelligence officer An intelligence officer is a member of the intelligence field employed by an organization to collect, compile or analyze information (known as intelligence) which is of use to that organization. The word of ''officer'' is a working title, not a r ...
. Any individual or spy ring (a cooperating group of spies), in the service of a
government A government is the system or group of people governing an organized community, generally a State (polity), state. In the case of its broad associative definition, government normally consists of legislature, executive (government), execu ...
,
company A company, abbreviated as co., is a Legal personality, legal entity representing an association of legal people, whether Natural person, natural, Juridical person, juridical or a mixture of both, with a specific objective. Company members ...
,
criminal organization In ordinary language, a crime is an unlawful act punishable by a state or other authority. The term ''crime'' does not, in modern criminal law, have any simple and universally accepted definition,Farmer, Lindsay: "Crime, definitions of", in Can ...
, or independent operation, can commit espionage. The practice is clandestine, as it is by definition unwelcome. In some circumstances, it may be a legal tool of
law enforcement Law enforcement is the activity of some members of the government or other social institutions who act in an organized manner to enforce the law by investigating, deterring, rehabilitating, or punishing people who violate the rules and norms gove ...
and in others, it may be illegal and punishable by law. Espionage is often part of an institutional effort by a government or commercial concern. However, the term tends to be associated with state spying on potential or actual enemies for
military A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. Militaries are typically authorized and maintained by a sovereign state, with their members identifiable by a d ...
purposes. Spying involving
corporation A corporation or body corporate is an individual or a group of people, such as an association or company, that has been authorized by the State (polity), state to act as a single entity (a legal entity recognized by private and public law as ...
s is known as
corporate espionage Industrial espionage, also known as economic espionage, corporate spying, or corporate espionage, is a form of espionage conducted for commercial purposes instead of purely national security. While political espionage is conducted or orchestrat ...
. One way to gather data and information about a targeted organization is by infiltrating its ranks. Spies can then return information such as the size and strength of
enemy force An opposing force (alternatively enemy force, abbreviated OPFOR or OpFor) is a military unit tasked with representing an enemy, usually for training purposes in War exercise, war game scenarios. The related concept of aggressor squadron is use ...
s. They can also find
dissident A dissident is a person who actively challenges an established political or religious system, doctrine, belief, policy, or institution. In a religious context, the word has been used since the 18th century, and in the political sense since the 2 ...
s within the organization and influence them to provide further information or to defect. In times of crisis, spies steal technology and
sabotage Sabotage is a deliberate action aimed at weakening a polity, government, effort, or organization through subversion, obstruction, demoralization (warfare), demoralization, destabilization, divide and rule, division, social disruption, disrupti ...
the enemy in various ways.
Counterintelligence Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's Intelligence agency, intelligence program from an opposition's intelligence service. It includes gathering informati ...
is the practice of thwarting enemy espionage and intelligence-gathering. Almost all
sovereign state A sovereign state is a State (polity), state that has the highest authority over a territory. It is commonly understood that Sovereignty#Sovereignty and independence, a sovereign state is independent. When referring to a specific polity, the ter ...
s have strict laws concerning espionage, including those who practice espionage in other countries, and the penalties for being caught are often severe.


History


Ancient world

Espionage has been recognized as of importance in military affairs since ancient times. The oldest known classified document was a report made by a spy disguised as a diplomatic envoy in the court of
King Hammurabi Hammurabi (; ; ), also spelled Hammurapi, was the sixth Amorite king of the Old Babylonian Empire, reigning from to BC. He was preceded by his father, Sin-Muballit, who abdicated due to failing health. During his reign, he conquered the city ...
, who died in around 1750 BC. The
ancient Egypt Ancient Egypt () was a cradle of civilization concentrated along the lower reaches of the Nile River in Northeast Africa. It emerged from prehistoric Egypt around 3150BC (according to conventional Egyptian chronology), when Upper and Lower E ...
ians had a developed secret service, and espionage is mentioned in the ''
Iliad The ''Iliad'' (; , ; ) is one of two major Ancient Greek epic poems attributed to Homer. It is one of the oldest extant works of literature still widely read by modern audiences. As with the ''Odyssey'', the poem is divided into 24 books and ...
'', the
Bible The Bible is a collection of religious texts that are central to Christianity and Judaism, and esteemed in other Abrahamic religions such as Islam. The Bible is an anthology (a compilation of texts of a variety of forms) originally writt ...
, and the Amarna letters. Espionage was also prevalent in the
Greco-Roman world The Greco-Roman world , also Greco-Roman civilization, Greco-Roman culture or Greco-Latin culture (spelled Græco-Roman or Graeco-Roman in British English), as understood by modern scholars and writers, includes the geographical regions and co ...
, when spies employed illiterate subjects in
civil service The civil service is a collective term for a sector of government composed mainly of career civil service personnel hired rather than elected, whose institutional tenure typically survives transitions of political leadership. A civil service offic ...
s. The thesis that espionage and intelligence has a central role in
war War is an armed conflict between the armed forces of states, or between governmental forces and armed groups that are organized under a certain command structure and have the capacity to sustain military operations, or between such organi ...
as well as
peace Peace is a state of harmony in the absence of hostility and violence, and everything that discusses achieving human welfare through justice and peaceful conditions. In a societal sense, peace is commonly used to mean a lack of conflict (suc ...
was first advanced in ''
The Art of War ''The Art of War'' is an ancient Chinese military treatise dating from the late Spring and Autumn period (roughly 5th century BC). The work, which is attributed to the ancient Chinese military strategist Sun Tzu ("Master Sun"), is compos ...
'' and in the ''
Arthashastra ''Kautilya's Arthashastra'' (, ; ) is an Ancient Indian Sanskrit treatise on statecraft, politics, economic policy and military strategy. The text is likely the work of several authors over centuries, starting as a compilation of ''Arthashas ...
''. "The Art of War," identifies five types of spies that are essential for gathering intelligence and achieving victory: ''local spies'' (citizen
informants An informant (also called an informer or, as a slang term, a "snitch", "rat", "canary", "stool pigeon", "stoolie", "tout" or "grass", among other terms) is a person who provides privileged information, or (usually damaging) information inten ...
within the enemy's territory), ''inward spies'' (recruited
double agent In the field of counterintelligence, a double agent is an employee of a secret intelligence service for one country, whose primary purpose is to spy on a target organization of another country, but who is now spying on their own country's organi ...
s within the enemy ranks), converted spies (recruited
defectors In politics, a defector is a person who gives up allegiance to one state in exchange for allegiance to another, changing sides in a way which is considered illegitimate by the first state. More broadly, defection involves abandoning a person, ca ...
converted to serve your side), doomed spies (expendable fabricators used to spread disinformation; acts as decoy for counter-intelligence), and surviving spies (spies that provide accurate intelligence after gathering information from the enemy).


Middle Ages

In the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
European states excelled at what has later been termed counter-
subversion Subversion () refers to a process by which the values and principles of a system in place are contradicted or reversed in an attempt to sabotage the established social order and its structures of Power (philosophy), power, authority, tradition, h ...
when Catholic
inquisition The Inquisition was a Catholic Inquisitorial system#History, judicial procedure where the Ecclesiastical court, ecclesiastical judges could initiate, investigate and try cases in their jurisdiction. Popularly it became the name for various med ...
s were staged to annihilate
heresy Heresy is any belief or theory that is strongly at variance with established beliefs or customs, particularly the accepted beliefs or religious law of a religious organization. A heretic is a proponent of heresy. Heresy in Heresy in Christian ...
. Inquisitions were marked by centrally organised mass
interrogation Interrogation (also called questioning) is interviewing as commonly employed by law enforcement officers, military personnel, intelligence agencies, organized crime syndicates, and terrorist organizations with the goal of eliciting useful informa ...
s and detailed record keeping. Western espionage changed fundamentally during the Renaissance when Italian
city-state A city-state is an independent sovereign city which serves as the center of political, economic, and cultural life over its contiguous territory. They have existed in many parts of the world throughout history, including cities such as Rome, ...
s installed resident
ambassador An ambassador is an official envoy, especially a high-ranking diplomat who represents a state and is usually accredited to another sovereign state or to an international organization as the resident representative of their own government or so ...
s in capital cities to collect intelligence.


The Renaissance

Renaissance
Venice Venice ( ; ; , formerly ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 islands that are separated by expanses of open water and by canals; portions of the city are li ...
became so obsessed with espionage that the
Council of Ten The Council of Ten (; ), or simply the Ten, was from 1310 to 1797 one of the major governing bodies of the Republic of Venice. Elections took place annually and the Council of Ten had the power to impose punishments upon Venetian nobility, patric ...
, which was nominally responsible for
security Security is protection from, or resilience against, potential harm (or other unwanted coercion). Beneficiaries (technically referents) of security may be persons and social groups, objects and institutions, ecosystems, or any other entity or ...
, did not even allow the
doge Doge, DoGE or DOGE may refer to: Internet culture * Doge (meme), an Internet meme primarily associated with the Shiba Inu dog breed ** Dogecoin, a cryptocurrency named after the meme ** Kabosu (dog), the dog portrayed in the original Doge image ...
to consult government
archive An archive is an accumulation of historical records or materials, in any medium, or the physical facility in which they are located. Archives contain primary source documents that have accumulated over the course of an individual or organ ...
s freely. In 1481 the Council of Ten barred all Venetian government officials from making contact with ambassadors or foreigners. Those revealing official secrets could face the
death penalty Capital punishment, also known as the death penalty and formerly called judicial homicide, is the state-sanctioned killing of a person as punishment for actual or supposed misconduct. The sentence ordering that an offender be punished in s ...
. Venice became obsessed with espionage because successful
international trade International trade is the exchange of capital, goods, and services across international borders or territories because there is a need or want of goods or services. (See: World economy.) In most countries, such trade represents a significan ...
demanded that the city-state could protect its
trade secret A trade secret is a form of intellectual property (IP) comprising confidential information that is not generally known or readily ascertainable, derives economic value from its secrecy, and is protected by reasonable efforts to maintain its conf ...
s. Under Queen
Elizabeth I Elizabeth I (7 September 153324 March 1603) was List of English monarchs, Queen of England and List of Irish monarchs, Ireland from 17 November 1558 until her death in 1603. She was the last and longest reigning monarch of the House of Tudo ...
of England (),
Francis Walsingham Sir Francis Walsingham ( – 6 April 1590) was principal secretary to Queen Elizabeth I of England from 20 December 1573 until his death and is popularly remembered as her " spymaster". Born to a well-connected family of gentry, Wa ...
( 1532–1590) was appointed foreign secretary and intelligence chief. The novelist and journalist
Daniel Defoe Daniel Defoe (; born Daniel Foe; 1660 – 24 April 1731) was an English writer, merchant and spy. He is most famous for his novel ''Robinson Crusoe'', published in 1719, which is claimed to be second only to the Bible in its number of translati ...
(died 1731) not only spied for the British government, but also developed a theory of espionage foreshadowing modern police-state methods.


United States

During the
American Revolution The American Revolution (1765–1783) was a colonial rebellion and war of independence in which the Thirteen Colonies broke from British America, British rule to form the United States of America. The revolution culminated in the American ...
,
Nathan Hale Nathan Hale (June 6, 1755 – September 22, 1776) was an American Patriot (American Revolution), Patriot, soldier and spy for the Continental Army during the American Revolutionary War. He volunteered for an Military intelligence, intelligence ...
and
Benedict Arnold Benedict Arnold (#Brandt, Brandt (1994), p. 4June 14, 1801) was an American-born British military officer who served during the American Revolutionary War. He fought with distinction for the American Continental Army and rose to the rank of ...
achieved their fame as spies, and there was considerable use of spies on both sides during the American Civil War. Though not a spy himself,
George Washington George Washington (, 1799) was a Founding Fathers of the United States, Founding Father and the first president of the United States, serving from 1789 to 1797. As commander of the Continental Army, Washington led Patriot (American Revoluti ...
was America's first
spymaster A spymaster is a leader of a group of spies or an intelligence agency An intelligence agency is a government agency responsible for the collection, Intelligence analysis, analysis, and exploitation of information in support of law enforce ...
, utilizing espionage tactics against the British.


World War I, World War II

In the 20th century, at the height of
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, all
great power A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power ...
s except the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
had elaborate civilian espionage systems, and all national military establishments had intelligence units. In order to protect the country against foreign agents, the
U.S. Congress The United States Congress is the legislative branch of the federal government of the United States. It is a bicameral legislature, including a lower body, the U.S. House of Representatives, and an upper body, the U.S. Senate. They both ...
passed the
Espionage Act of 1917 The Espionage Act of 1917 is a United States federal law enacted on June 15, 1917, shortly after the United States entered World War I. It has been amended numerous times over the years. It was originally found in Title 50 of the U.S. Code ( ...
.
Mata Hari Margaretha Geertruida MacLeod (, ; 7 August 187615 October 1917), better known by the stage name Mata Hari ( , ; , ), was a Dutch Stripper, exotic dancer and courtesan who was convicted of being a spy for German Empire, Germany during World War ...
, who obtained information for Germany by seducing French officials, was the most noted espionage agent of World War I. Prior to
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
,
Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
and
Imperial Japan The Empire of Japan, also known as the Japanese Empire or Imperial Japan, was the Japanese nation state that existed from the Meiji Restoration on January 3, 1868, until the Constitution of Japan took effect on May 3, 1947. From Japan–Kor ...
established elaborate espionage nets. In 1942 the
Office of Strategic Services The Office of Strategic Services (OSS) was the first intelligence agency of the United States, formed during World War II. The OSS was formed as an agency of the Joint Chiefs of Staff (JCS) to coordinate espionage activities behind enemy lines ...
was founded by Gen.
William J. Donovan William Joseph "Wild Bill" Donovan (January 1, 1883 – February 8, 1959) was an American soldier, lawyer, intelligence officer and diplomat. He is best known for serving as the head of the Office of Strategic Services (OSS), the precursor to ...
. However, the British
Special Operations Executive Special Operations Executive (SOE) was a British organisation formed in 1940 to conduct espionage, sabotage and reconnaissance in German-occupied Europe and to aid local Resistance during World War II, resistance movements during World War II. ...
was the keystone of Allied intelligence. Numerous resistance groups such as the Austrian
Maier Maier is a surname of German origin. It is a variant spelling of the more usual " Meyer", which is cognate with the English word "mayor", but with a different meaning. Individuals with the surname include: * Anneliese Maier (1905–1971), Germ ...
-Messner Group, the
French Resistance The French Resistance ( ) was a collection of groups that fought the German military administration in occupied France during World War II, Nazi occupation and the Collaboration with Nazi Germany and Fascist Italy#France, collaborationist Vic ...
, the
Witte Brigade The White Brigade (, ) was a Belgian resistance group founded on 23 July 1940 in Antwerp by Marcel Louette, who was nicknamed "Fidelio". The group was originally known as "De Geuzengroep" and changed its name again after the Liberation of Belgium ...
, Milorg and the Polish
Home Army The Home Army (, ; abbreviated AK) was the dominant resistance movement in German-occupied Poland during World War II. The Home Army was formed in February 1942 from the earlier Związek Walki Zbrojnej (Armed Resistance) established in the ...
worked against Nazi Germany and provided the Allied secret services with information that was very important for the war effort.


Cold War

Since the end of
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, the activity of espionage has enlarged, much of it growing out of the
Cold War The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
between the United States and the
former USSR The post-Soviet states, also referred to as the former Soviet Union or the former Soviet republics, are the independent sovereign states that emerged/re-emerged from the dissolution of the Soviet Union in 1991. Prior to their independence, they ...
. The
Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
and its successor, the
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
, have had a long tradition of espionage ranging from the
Okhrana The Department for the Protection of Public Safety and Order (), usually called the Guard Department () and commonly abbreviated in modern English sources as the Okhrana ( rus , Охрана, p=ɐˈxranə, a=Ru-охрана.ogg, t= The Guard) w ...
to the
KGB The Committee for State Security (, ), abbreviated as KGB (, ; ) was the main security agency of the Soviet Union from 1954 to 1991. It was the direct successor of preceding Soviet secret police agencies including the Cheka, Joint State Polit ...
(Committee for State Security), which also acted as a secret police force. In the United States, the 1947 National Security Act created the
Central Intelligence Agency The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...
(CIA) to coordinate intelligence and the National Security Agency for research into codes and electronic communication. In addition to these, the United States has 13 other intelligence gathering agencies; most of the U.S. expenditures for intelligence gathering are budgeted to various Defense Dept. agencies and their programs. Under the intelligence reorganization of 2004, the director of national intelligence is responsible for overseeing and coordinating the activities and budgets of the U.S. intelligence agencies. In the
Cold War The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
, espionage cases included
Alger Hiss Alger Hiss (November 11, 1904 – November 15, 1996) was an American government official who was accused of espionage in 1948 for the Soviet Union in the 1930s. The statute of limitations had expired for espionage, but he was convicted of perjur ...
,
Whittaker Chambers Whittaker Chambers (born Jay Vivian Chambers; April 1, 1901 – July 9, 1961) was an American writer and intelligence agent. After early years as a Communist Party member (1925) and Soviet spy (1932–1938), he defected from the Soviet u ...
and the Rosenberg Case. In 1952 the Communist Chinese captured two CIA agents and in 1960
Francis Gary Powers Francis Gary Powers (August 17, 1929August 1, 1977) was an American pilot who served as a United States Air Force officer and a CIA employee. Powers is best known for his involvement in the 1960 U-2 incident, when he was shot down while fly ...
, flying a U-2 reconnaissance mission over the Soviet Union for the CIA, was shot down and captured. During the Cold War, many Soviet intelligence officials defected to the West, including Gen.
Walter Krivitsky Walter Germanovich Krivitsky (Ва́льтер Ге́рманович Криви́цкий; birth name ''Samuel Gershevich Ginsberg,'' Самуил Гершевич Гинзберг, June 28, 1899 – February 10, 1941) was a Soviet military i ...
, Victor Kravchenko, Vladimir Petrov, Peter Deriabin, Pawel Monat and
Oleg Penkovsky Oleg Vladimirovich Penkovsky (; 23 April 1919 – 16 May 1963), codenamed Hero (by the CIA) and Yoga (by MI6) was a Soviet military intelligence (GRU) colonel during the late 1950s and early 1960s. Penkovsky informed the United States and the U ...
of the
GRU Gru is a fictional character and the main protagonist of the ''Despicable Me'' film series. Gru or GRU may also refer to: Arts and entertainment * Gru (rapper), Serbian rapper * Gru, an antagonist in '' The Kine Saga'' Organizations Georgia (c ...
. Among Western officials who defected to the Soviet Union are
Guy Burgess Guy Francis de Moncy Burgess (16 April 1911 – 30 August 1963) was a British diplomat and Soviet double agent, and a member of the Cambridge Five spy ring that operated from the mid-1930s to the early years of the Cold War era. His defection ...
and Donald D. Maclean of Great Britain in 1951,
Otto John Otto John (19 March 1909 – 26 March 1997) was a German lawyer and intelligence official. During World War Two, he was a conspirator in the 20 July plot to assassinate Adolf Hitler. Following the war, he became the first head of West Germa ...
of West Germany in 1954, William H. Martin and Bernon F. Mitchell, U.S. cryptographers, in 1960, and Harold (Kim) Philby of Great Britain in 1962. U.S. acknowledgment of its U-2 flights and the exchange of Francis Gary Powers for
Rudolf Abel Rudolf Ivanovich Abel () was the alias of William August Fisher (11 July 1903 – 15 November 1971), a Soviet intelligence officer, created to alert his Soviet KGB handlers when Fisher was arrested in the USA on charges of espionage by the FBI ...
in 1962 implied the legitimacy of some espionage as an arm of foreign policy.
China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
has a very cost-effective intelligence program that is especially effective in monitoring neighboring countries such as
Mongolia Mongolia is a landlocked country in East Asia, bordered by Russia to the north and China to the south and southeast. It covers an area of , with a population of 3.5 million, making it the world's List of countries and dependencies by po ...
,
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
and
India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
. Smaller countries can also mount effective and focused espionage efforts. For instance, the Vietnamese communists had consistently superior intelligence during the
Vietnam War The Vietnam War (1 November 1955 – 30 April 1975) was an armed conflict in Vietnam, Laos, and Cambodia fought between North Vietnam (Democratic Republic of Vietnam) and South Vietnam (Republic of Vietnam) and their allies. North Vietnam w ...
. Some Islamic countries, including
Libya Libya, officially the State of Libya, is a country in the Maghreb region of North Africa. It borders the Mediterranean Sea to the north, Egypt to Egypt–Libya border, the east, Sudan to Libya–Sudan border, the southeast, Chad to Chad–L ...
,
Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...
and
Syria Syria, officially the Syrian Arab Republic, is a country in West Asia located in the Eastern Mediterranean and the Levant. It borders the Mediterranean Sea to the west, Turkey to Syria–Turkey border, the north, Iraq to Iraq–Syria border, t ...
, have highly developed operations as well.
SAVAK The Bureau for Intelligence and Security of the State (), shortened to as SAVAK () or S.A.V.A.K. () was the secret police of the Imperial State of Iran. It was established in Tehran in 1957 by national security law. and continued to operate un ...
, the secret police of the
Pahlavi dynasty The Pahlavi dynasty () is an List of monarchs of Iran, Iranian royal dynasty that was the Pahlavi Iran, last to rule Iran before the country's monarchy was abolished by the Iranian Revolution in 1979. It was founded in 1925 by Reza Shah, Reza S ...
, was particularly feared by Iranian dissidents before the 1979
Iranian Revolution The Iranian Revolution (, ), also known as the 1979 Revolution, or the Islamic Revolution of 1979 (, ) was a series of events that culminated in the overthrow of the Pahlavi dynasty in 1979. The revolution led to the replacement of the Impe ...
.


Modern day

Today, spy agencies target the
illegal drug trade The illegal drug trade, drug trafficking, or narcotrafficking is a global black market dedicated to the cultivation, manufacture, distribution and sale of drug prohibition, prohibited drugs. Most jurisdictions prohibitionism, prohibit trade, exce ...
and
terrorists Terrorism, in its broadest sense, is the use of violence against non-combatants to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war aga ...
as well as state actors. Intelligence services value certain intelligence collection techniques over others. The former Soviet Union, for example, preferred human sources over research in open sources, while the United States has tended to emphasize technological methods such as
SIGINT Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly u ...
and
IMINT Imagery intelligence (IMINT), pronounced as either as ''Im-Int'' or ''I-Mint'', is an intelligence gathering discipline wherein imagery is analyzed (or "exploited") to identify information of intelligence value. Imagery used for defense intell ...
. In the Soviet Union, both political (
KGB The Committee for State Security (, ), abbreviated as KGB (, ; ) was the main security agency of the Soviet Union from 1954 to 1991. It was the direct successor of preceding Soviet secret police agencies including the Cheka, Joint State Polit ...
) and
military intelligence Military intelligence is a military discipline that uses information collection and analysis List of intelligence gathering disciplines, approaches to provide guidance and direction to assist Commanding officer, commanders in decision making pr ...
(
GRU Gru is a fictional character and the main protagonist of the ''Despicable Me'' film series. Gru or GRU may also refer to: Arts and entertainment * Gru (rapper), Serbian rapper * Gru, an antagonist in '' The Kine Saga'' Organizations Georgia (c ...
) officers were judged by the number of agents they recruited.


Targets of espionage

Espionage agents are usually trained experts in a targeted field so they can differentiate mundane information from targets of value to their own organizational development. Correct identification of the target at its execution is the sole purpose of the espionage operation. Broad areas of espionage targeting expertise include: *
Natural resource Natural resources are resources that are drawn from nature and used with few modifications. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest, and cultural value. ...
s: strategic production identification and assessment (food, energy, materials). Agents are usually found among bureaucrats who administer these resources in their own countries * Popular sentiment towards domestic and foreign policies (popular, middle class, elites). Agents often recruited from field journalistic crews, exchange postgraduate students and sociology researchers * Strategic economic strengths (production, research, manufacture, infrastructure). Agents recruited from science and technology academia, commercial enterprises, and more rarely from among military technologists *
Military capability Military capability is defined by the Australian Defence Force as "the ability to achieve a desired effect in a specific operating environment". It is defined by three interdependent factors: combat readiness, sustainable capability and force struc ...
intelligence (offensive, defensive, manoeuvre, naval, air, space). Agents are trained by military espionage education facilities and posted to an area of operation with covert identities to minimize prosecution *
Counterintelligence Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's Intelligence agency, intelligence program from an opposition's intelligence service. It includes gathering informati ...
operations targeting opponent's intelligence services themselves, such as breaching the confidentiality of communications and recruiting defectors or
mole Mole (or Molé) may refer to: Animals * Mole (animal) or "true mole" * Golden mole, southern African mammals * Marsupial mole Marsupial moles, the Notoryctidae family, are two species of highly specialized marsupial mammals that are found i ...
s


Methods and terminology


How the United States defines espionage

Although the news media may speak of "spy satellites" and the like, espionage is not a synonym for all intelligence-gathering disciplines. It is a specific form of human source intelligence (
HUMINT Human intelligence (HUMINT, pronounced ) is intelligence-gathering by means of human sources and interpersonal communication. It is distinct from more technical intelligence-gathering disciplines, such as signals intelligence (SIGINT), imager ...
). Codebreaking (
cryptanalysis Cryptanalysis (from the Greek ''kryptós'', "hidden", and ''analýein'', "to analyze") refers to the process of analyzing information systems in order to understand hidden aspects of the systems. Cryptanalysis is used to breach cryptographic se ...
or
COMINT Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly u ...
), aircraft or satellite photography (
IMINT Imagery intelligence (IMINT), pronounced as either as ''Im-Int'' or ''I-Mint'', is an intelligence gathering discipline wherein imagery is analyzed (or "exploited") to identify information of intelligence value. Imagery used for defense intell ...
), and analysis of publicly available data sources (
OSINT Open source intelligence (OSINT) is the collection and analysis of data gathered from open sources (overt sources and publicly available information) to produce actionable intelligence. OSINT is primarily used in national security, law enforceme ...
) are all intelligence gathering disciplines, but none of them is considered espionage. Many HUMINT activities, such as prisoner
interrogation Interrogation (also called questioning) is interviewing as commonly employed by law enforcement officers, military personnel, intelligence agencies, organized crime syndicates, and terrorist organizations with the goal of eliciting useful informa ...
, reports from military
reconnaissance In military operations, military reconnaissance () or scouting is the exploration of an area by military forces to obtain information about enemy forces, the terrain, and civil activities in the area of operations. In military jargon, reconnai ...
patrols and from diplomats, etc., are not considered espionage. Espionage is the disclosure of sensitive information (classified) to people who are not cleared for that information or access to that sensitive information. Unlike other forms of intelligence collection disciplines, espionage usually involves accessing the place where the desired information is stored or accessing the people who know the information and will divulge it through some kind of subterfuge. There are exceptions to physical meetings, such as the Oslo Report, or the insistence of
Robert Hanssen Robert Philip Hanssen (April 18, 1944 – June 5, 2023) was an American Federal Bureau of Investigation (FBI) agent who spied for Soviet and Russian intelligence services against the United States periodically from 1979 to 2001. His espionage w ...
in never meeting the people who bought his information. The US defines espionage towards itself as "the act of obtaining, delivering, transmitting, communicating, or receiving information about the national defence with an intent, or reason to believe, that the information may be used to the injury of the United States or to the advantage of any foreign nation". ''
Black's Law Dictionary ''Black's Law Dictionary'' is the most frequently used legal dictionary in the United States. Henry Campbell Black (1860–1927) was the author of the first two editions of the dictionary. History The first edition was published in 1891 by Wes ...
'' (1990) defines espionage as: "... gathering, transmitting, or losing ... information related to the
national defense National security, or national defence (national defense in American English), is the security and defence of a sovereign state, including its citizens, economy, and institutions, which is regarded as a duty of government. Originally conceived ...
". Espionage is a violation of United States law, and Article 106a of the
Uniform Code of Military Justice The Uniform Code of Military Justice (UCMJ) is the foundation of the system of military justice of the armed forces of the United States. The UCMJ was established by the United States Congress in accordance with their constitutional authority ...
. The United States, like most nations, conducts espionage against other nations, under the control of the
National Clandestine Service The Directorate of Operations (DO), less formally called the Clandestine Service,Central Intelligence AgencyCareers & Internships Retrieved: July 9, 2015. is a component of the US Central Intelligence Agency. It was known as the ''Directorate ...
. Britain's espionage activities are controlled by the
Secret Intelligence Service The Secret Intelligence Service (SIS), commonly known as MI6 (MI numbers, Military Intelligence, Section 6), is the foreign intelligence service of the United Kingdom, tasked mainly with the covert overseas collection and analysis of Human i ...
.


Technology and techniques

*
Agent handling In intelligence organizations, agent handling is the management of so-called agents (called secret agents or spies in common parlance), principal agents, and agent networks (called "assets") by intelligence officers typically known as case of ...
*
Biographic leverage Biographic leverage is a term used in the field of espionage to describe a form of blackmail in which a piece of negative information about an individual is used as leverage to persuade them to do something they are reluctant to do or to disclose se ...
*
Concealment device Concealment devices or diversion safes are used to hide things for the purpose of secrecy or security. They are made from an ordinary household object such as a book, a soda can, a candle, a can, or something as small as a coin. The idea is tha ...
*
Covert agent The term ''covert agent'' can have many meanings, depending on context. United States As it is used in the United States Intelligence Community, it is legally defined in 50 USCA §426. The definition is subject to judicial interpretation, but ...
*
Covert listening device A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone. The use of bugs, called bugging, or wiretapping is a common technique in surveillance, espionage and ...
* Cut-out *
Cyber spying Cyber espionage, cyber spying, or cyber-collection is the act or practice of obtaining secrets and information without the permission and knowledge of the holder of the information using methods on the Internet, networks or individual computers th ...
*
Dead drop A dead drop or dead letter box is a method of espionage tradecraft used to pass items or information between two individuals (e.g., a case officer and an agent, or two agents) via a secret location. By avoiding direct meetings, individuals can ...
*
False flag A false flag operation is an act committed with the intent of disguising the actual source of responsibility and pinning blame on another party. The term "false flag" originated in the 16th century as an expression meaning an intentional misrep ...
operations * Front organisation *
Human intelligence Human intelligence is the Intellect, intellectual capability of humans, which is marked by complex Cognition, cognitive feats and high levels of motivation and self-awareness. Using their intelligence, humans are able to learning, learn, Concept ...
(HUMINT) * Honeypot *
Impersonation An impersonator is someone who imitates or copies the behavior or actions of another. There are many reasons for impersonating someone: *Living history: After close study of some historical figure, a performer may dress and speak "as" that ...
*
Impostor An impostor (also spelled imposter) is a person who pretends to be somebody else, often through means of disguise, deceiving others by knowingly falsifying one or more aspects of their identity. This is in contrast to someone that honestly belie ...
*
Interrogation Interrogation (also called questioning) is interviewing as commonly employed by law enforcement officers, military personnel, intelligence agencies, organized crime syndicates, and terrorist organizations with the goal of eliciting useful informa ...
* Non-official cover * Numbers messaging * Official cover *
Open-source intelligence Open source intelligence (OSINT) is the collection and analysis of data gathered from open sources (overt sources and publicly available information) to produce actionable intelligence. OSINT is primarily used in national security, law enforceme ...
(OSINT) * One-way voice link *
Sabotage Sabotage is a deliberate action aimed at weakening a polity, government, effort, or organization through subversion, obstruction, demoralization (warfare), demoralization, destabilization, divide and rule, division, social disruption, disrupti ...
*
Safe house A safe house (also spelled safehouse) is a dwelling place or building whose unassuming appearance makes it an inconspicuous location where one can hide out, take shelter, or conduct clandestine activities. Historical usage It may also refer to ...
* Side channel attack *
Signals intelligence Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly u ...
(SIGINT) *
Spy ship A spy ship or reconnaissance vessel is a dedicated ship intended to gather intelligence, usually by means of sophisticated electronic eavesdropping. In a wider sense, any ship intended to gather information could be considered a spy ship. Sp ...
*
Steganography Steganography ( ) is the practice of representing information within another message or physical object, in such a manner that the presence of the concealed information would not be evident to an unsuspecting person's examination. In computing/ ...
*
Surveillance Surveillance is the monitoring of behavior, many activities, or information for the purpose of information gathering, influencing, managing, or directing. This can include observation from a distance by means of electronic equipment, such as ...
*
Surveillance aircraft Surveillance aircraft are aircraft used for surveillance. They are primarily operated by military forces and government agencies in roles including intelligence gathering, maritime patrol, battlefield and airspace surveillance, observation (e. ...
* Surveillance balloon Source:


Organization

A spy is a person employed to seek out secret information from a source. Within the
United States Intelligence Community The United States Intelligence Community (IC) is a group of separate US federal government, U.S. federal government intelligence agencies and subordinate organizations that work to conduct Intelligence assessment, intelligence activities which ...
, "
asset In financial accounting, an asset is any resource owned or controlled by a business or an economic entity. It is anything (tangible or intangible) that can be used to produce positive economic value. Assets represent value of ownership that can b ...
" is more common usage. A case officer or
Special Agent In the United States, a special agent is an official title used to refer to certain investigators or detectives of federal, military, tribal, or state agencies who primarily serve in criminal investigatory positions. Additionally, some special ...
, who may have diplomatic status (i.e., official cover or non-official cover), supports and directs the human collector. Cut-outs are
courier A courier is a person or organization that delivers a message, package or letter from one place or person to another place or person. Typically, a courier provides their courier service on a commercial contract basis; however, some couriers are ...
s who do not know the agent or case officer but transfer messages. A
safe house A safe house (also spelled safehouse) is a dwelling place or building whose unassuming appearance makes it an inconspicuous location where one can hide out, take shelter, or conduct clandestine activities. Historical usage It may also refer to ...
is a refuge for spies. Spies often seek to obtain secret information from another source. In larger networks, the organization can be complex with many methods to avoid detection, including
clandestine cell system A clandestine cell system is a method for organizing a group of people, such as resistance fighters, spies, mercenaries, organized crime members, or terrorists, to make it harder for police, military or other hostile groups to catch them. In ...
s. Often the players have never met. Case officers are stationed in foreign countries to recruit and supervise intelligence agents, who in turn spy on targets in the countries where they are assigned. A spy need not be a citizen of the target country and hence does not automatically commit
treason Treason is the crime of attacking a state (polity), state authority to which one owes allegiance. This typically includes acts such as participating in a war against one's native country, attempting to Coup d'état, overthrow its government, spy ...
when operating within it. While the more common practice is to recruit a person already trusted with access to sensitive information, sometimes a person with a well-prepared synthetic identity (cover background), called a ''legend'' in
tradecraft Tradecraft, within the intelligence community, refers to the techniques, methods, and technologies used in modern espionage (spying) and generally as part of the activity of intelligence assessment. This includes general topics or techniques ...
, may attempt to infiltrate a target organization. These agents can be moles (who are recruited before they get access to secrets),
defectors In politics, a defector is a person who gives up allegiance to one state in exchange for allegiance to another, changing sides in a way which is considered illegitimate by the first state. More broadly, defection involves abandoning a person, ca ...
(who are recruited after they get access to secrets and leave their country) or defectors in place (who get access but do not leave). A ''legend'' is also employed for an individual who is not an illegal agent, but is an ordinary citizen who is "relocated", for example, a "protected witness". Nevertheless, such a non-agent very likely will also have a case officer who will act as a controller. As in most, if not all synthetic identity schemes, for whatever purpose (illegal or legal), the assistance of a controller is required. Spies may also be used to spread disinformation in the organization in which they are planted, such as giving false reports about their country's military movements, or about a competing company's ability to bring a product to market. Spies may be given other roles that also require infiltration, such as
sabotage Sabotage is a deliberate action aimed at weakening a polity, government, effort, or organization through subversion, obstruction, demoralization (warfare), demoralization, destabilization, divide and rule, division, social disruption, disrupti ...
. Many governments spy on their allies as well as their enemies, although they typically maintain a policy of not commenting on this. Governments also employ private companies to collect information on their behalf such as
SCG International Risk SCG International was founded in 1996 to provide government and private sectors with domestic and international security, logistics and training services. After SCG and its former CEO Jamie Smith lost a $9.5 million lawsuit, the Virginian-Pilot rep ...
, International Intelligence Limited and others. Many organizations, both national and non-national, conduct espionage operations. It should not be assumed that espionage is always directed at the most secret operations of a target country. National and terrorist organizations and other groups are also targeted. This is because governments want to retrieve information that they can use to be proactive in protecting their nation from potential terrorist attacks. Communications both are necessary to espionage and
clandestine operation A clandestine operation (op) is an intelligence or military operation carried out in such a way that the operation goes unnoticed by the general population or specific enemy forces. Until the 1970s, clandestine operations were primarily politic ...
s, and also a great vulnerability when the adversary has sophisticated SIGINT detection and interception capability. Spies rely on COVCOM or covert communication through technically advanced spy devices. Agents must also transfer money securely.


Industrial espionage

Industrial espionage, also known as economic espionage, corporate spying, or corporate espionage, is a form of espionage conducted for
commercial Commercial may refer to: * (adjective for) commerce, a system of voluntary exchange of products and services ** (adjective for) trade, the trading of something of economic value such as goods, services, information or money * a dose of advertising ...
purposes instead of purely
national security National security, or national defence (national defense in American English), is the security and Defence (military), defence of a sovereign state, including its Citizenship, citizens, economy, and institutions, which is regarded as a duty of ...
. While political espionage is conducted or orchestrated by governments and is international in scope, industrial or corporate espionage is more often national and occurs between companies or
corporations A corporation or body corporate is an individual or a group of people, such as an association or company, that has been authorized by the State (polity), state to act as a single entity (a legal entity recognized by private and public law as ...
. It may include the acquisition of
intellectual property Intellectual property (IP) is a category of property that includes intangible creations of the human intellect. There are many types of intellectual property, and some countries recognize more than others. The best-known types are patents, co ...
, such as information on industrial manufacture, ideas, techniques and processes, recipes and formulas. Or it could include sequestration of proprietary or operational information, such as that on customer datasets, pricing, sales, marketing, research and development, policies, prospective bids, planning or marketing strategies or the changing compositions and locations of production. It may describe activities such as theft of
trade secrets A trade secret is a form of intellectual property (IP) comprising confidential information that is not generally known or readily ascertainable, derives economic value from its secrecy, and is protected by reasonable efforts to maintain its conf ...
,
bribery Bribery is the corrupt solicitation, payment, or Offer and acceptance, acceptance of a private favor (a bribe) in exchange for official action. The purpose of a bribe is to influence the actions of the recipient, a person in charge of an official ...
,
blackmail Blackmail is a criminal act of coercion using a threat. As a criminal offense, blackmail is defined in various ways in common law jurisdictions. In the United States, blackmail is generally defined as a crime of information, involving a thr ...
and technological surveillance. As well as orchestrating espionage on commercial organizations, governments can also be targets – for example, to determine the terms of a tender for a government contract. Reportedly
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
is losing $12 billion and
German German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...
companies are estimated to be losing about €50 billion ($87 billion) and 30,000 jobs to industrial espionage every year.


Agents in espionage

In espionage jargon, an "agent" is the person who does the spying. They may be a citizen of a country recruited by that country to spy on another; a citizen of a country recruited by that country to carry out
false flag A false flag operation is an act committed with the intent of disguising the actual source of responsibility and pinning blame on another party. The term "false flag" originated in the 16th century as an expression meaning an intentional misrep ...
assignments disrupting his own country; a citizen of one country who is recruited by a second country to spy on or work against his own country or a third country, and more. In popular usage, this term is sometimes confused with an ''
intelligence officer An intelligence officer is a member of the intelligence field employed by an organization to collect, compile or analyze information (known as intelligence) which is of use to that organization. The word of ''officer'' is a working title, not a r ...
'', ''intelligence operative'', or ''case officer'' who recruits and handles agents. Among the most common forms of agent are: *
Agent provocateur An is a person who actively entices another person to commit a crime that would not otherwise have been committed and then reports the person to the authorities. They may target individuals or groups. In jurisdictions in which conspiracy is a ...
: instigates trouble or provides information to gather as many people as possible into one location for an arrest. * Intelligence agent: provides access to sensitive information through the use of special privileges. If used in ''corporate intelligence'' gathering, this may include gathering information of a corporate business venture or stock portfolio. In ''economic intelligence'', "Economic Analysts may use their specialized skills to analyze and interpret economic trends and developments, assess and track foreign financial activities, and develop new econometric and modelling methodologies."Cia.gov This may also include information of trade or tariff. * Agent-of-influence: provides political influence in an area of interest, possibly including
publications To publish is to make Content (media), content available to the general public.Berne Conv ...
needed to further an intelligence service agenda. The use of the media to print a story to mislead a foreign service into action, exposing their operations while under surveillance. *
Double agent In the field of counterintelligence, a double agent is an employee of a secret intelligence service for one country, whose primary purpose is to spy on a target organization of another country, but who is now spying on their own country's organi ...
: engages in clandestine activity for two intelligence or security services (or more in joint operations), who provides information about one or about each to the other, and who wittingly withholds significant information from one on the instructions of the other or is unwittingly manipulated by one so that significant facts are withheld from the adversary.
Peddler A peddler (American English) or pedlar (British English) is a door-to-door and/or travelling vendor of good (economics), goods. In 19th-century United States the word "drummer" was often used to refer to a peddler or traveling salesman; as exem ...
s, fabricators, and others who work for themselves rather than a service are not double agents because they are not agents. The fact that double agents have an agent relationship with both sides distinguishes them from penetrations, who normally are placed with the target service in a staff or officer capacity." ** Redoubled agent: forced to mislead the foreign intelligence service after being caught as a double agent. ** Unwitting double agent: offers or is forced to recruit as a double or redoubled agent and in the process is recruited by either a third-party intelligence service or his own government without the knowledge of the intended target intelligence service or the agent. This can be useful in capturing important information from an agent that is attempting to seek allegiance with another country. The double agent usually has knowledge of both intelligence services and can identify operational techniques of both, thus making third-party recruitment difficult or impossible. The knowledge of operational techniques can also affect the relationship between the operations officer (or case officer) and the agent if the case is transferred by an operational targeting officer] to a new operations officer, leaving the new officer vulnerable to attack. This type of transfer ''may'' occur when an officer has completed his term of service or when his ''cover'' is blown. ** Triple agent: works for three intelligence services. * Fabricator: used to spread disinformation. *
Sleeper agent A sleeper agent is a spy or operative who is placed in a target country or organization, not to undertake an immediate mission, but instead to act as a potential asset on short notice if activated in the future. Even if not activated, the "sle ...
: recruited to ''wake up'' and perform a specific set of tasks or functions while living undercover in an area of interest. This type of agent is not the same as a ''deep cover operative'', who continually contacts a case officer to file intelligence reports. A sleeper agent is not in contact with anyone until ''activated''. Less common or lesser known forms of agent include: * Access agent: provides access to other potential agents by providing
offender profiling Offender profiling, also known as criminal profiling, is an investigative strategy used by law enforcement agencies to identify likely suspects and has been used by Detective, investigators to link cases that may have been committed by the same ...
information that can help lead to recruitment into an intelligence service. * Confusion agent: provides misleading information to an enemy intelligence service or attempts to discredit the operations of the ''target'' in an operation. * Facilities agent: provides access to buildings, such as garages or offices used for staging operations, resupply, etc. * Illegal agent: lives in another country under false credentials and does not report to a local station. A nonofficial cover operative can be dubbed an "illegal"Illegal
Mi5.gov. "How spies operate".
when working in another country without diplomatic protection. * Principal agent: functions as a handler for an established network of agents, usually considered "blue chip".


Law

Espionage against a nation is a crime under the
legal code A code of law, also called a law code or legal code, is a systematic collection of statutes. It is a type of legislation that purports to exhaustively cover a complete system of laws or a particular area of law as it existed at the time the co ...
of many world states.


Espionage law in the United States

In the United States, it is covered by the
Espionage Act of 1917 The Espionage Act of 1917 is a United States federal law enacted on June 15, 1917, shortly after the United States entered World War I. It has been amended numerous times over the years. It was originally found in Title 50 of the U.S. Code ( ...
. The risks of espionage vary. A spy violating the host country's laws may be deported, imprisoned, or even executed. A spy violating its own country's laws can be imprisoned for espionage or/and
treason Treason is the crime of attacking a state (polity), state authority to which one owes allegiance. This typically includes acts such as participating in a war against one's native country, attempting to Coup d'état, overthrow its government, spy ...
(which in the United States and some other jurisdictions can only occur if they take up arms or aids the enemy against their own country during wartime), or even executed, as the Rosenbergs were. For example, when
Aldrich Ames Aldrich Hazen Ames (; born May 26, 1941) is an American former Central Intelligence Agency, CIA counterintelligence officer who was convicted of espionage on behalf of the Soviet Union and Russia in 1994. He is serving a life sentence, without th ...
handed a stack of dossiers of U.S.
Central Intelligence Agency The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...
(CIA) agents in the
Eastern Bloc The Eastern Bloc, also known as the Communist Bloc (Combloc), the Socialist Bloc, the Workers Bloc, and the Soviet Bloc, was an unofficial coalition of communist states of Central and Eastern Europe, Asia, Africa, and Latin America that were a ...
to his KGB-officer "handler", the KGB "rolled up" several networks, and at least ten people were secretly shot. When Ames was arrested by the U.S.
Federal Bureau of Investigation The Federal Bureau of Investigation (FBI) is the domestic Intelligence agency, intelligence and Security agency, security service of the United States and Federal law enforcement in the United States, its principal federal law enforcement ag ...
(FBI), he faced life in prison; his contact, who had
diplomatic immunity Diplomatic immunity is a principle of international law by which certain foreign government officials are recognized as having legal immunity from the jurisdiction of another country.
, was declared ''
persona non grata In diplomacy, a ' (PNG) is a foreign diplomat that is asked by the host country to be recalled to their home country. If the person is not recalled as requested, the host state may refuse to recognize the person concerned as a member of the diplo ...
'' and taken to the airport. Ames' wife was threatened with life imprisonment if her husband did not cooperate; he did, and she was given a five-year sentence. Hugh Francis Redmond, a CIA officer in China, spent nineteen years in a Chinese prison for espionage—and died there—as he was operating without diplomatic cover and immunity. In United States law, treason, espionage, and spying are separate crimes. Treason and espionage have graduated punishment levels. The United States in
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
passed the Espionage Act of 1917. Over the years, many spies, such as the Soble spy ring, Robert Lee Johnson, the Rosenberg ring, Aldrich Hazen Ames, Robert Philip Hanssen,
Jonathan Pollard Jonathan Jay Pollard (born August 7, 1954) is an American former intelligence analyst who was jailed for spying for Israel. In 1984, Pollard sold numerous state secrets, including the National Security Agency's ten-volume manual on how the U.S. ...
,
John Anthony Walker John Anthony Walker Jr. (July 28, 1937 – August 28, 2014) was a United States Navy chief warrant officer and communications specialist convicted of spying for the Soviet Union from 1967 to 1985 and sentenced to life in prison. In late ...
, James Hall III, and others have been prosecuted under this law. In modern times, many people convicted of espionage have been given penal sentences rather than execution. For example, Aldrich Hazen Ames is an American CIA analyst, turned KGB mole, who was convicted of espionage in 1994; he is serving a
life sentence Life imprisonment is any sentence of imprisonment under which the convicted individual is to remain incarcerated for the rest of their natural life (or until pardoned or commuted to a fixed term). Crimes that result in life imprisonment are c ...
without the possibility of parole in the high-security Allenwood U.S. Penitentiary. ''(Search result)'' Ames was formerly a 31-year
CIA The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...
counterintelligence Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's Intelligence agency, intelligence program from an opposition's intelligence service. It includes gathering informati ...
officer and analyst who committed espionage against his country by
spying Espionage, spying, or intelligence gathering, as a subfield of the intelligence field, is the act of obtaining secret or Confidentiality, confidential information (Intelligence (information), intelligence). A person who commits espionage on ...
for the
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
and
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
. So far as it is known, Ames compromised the second-largest number of CIA agents, second only to
Robert Hanssen Robert Philip Hanssen (April 18, 1944 – June 5, 2023) was an American Federal Bureau of Investigation (FBI) agent who spied for Soviet and Russian intelligence services against the United States periodically from 1979 to 2001. His espionage w ...
, who also served a prison sentence until his death in 2023.


Use against non-spies

Espionage laws are also used to prosecute non-spies. In the United States, the Espionage Act of 1917 was used against socialist politician Eugene V. Debs (at that time the Act had much stricter guidelines and amongst other things banned speech against military recruiting). The law was later used to suppress publication of periodicals, for example of
Father Coughlin Charles Edward Coughlin ( ; October 25, 1891 – October 27, 1979), commonly known as Father Coughlin, was a Canadian-American Catholic Church, Catholic priest based near Detroit. He was the founding priest of the National Shrine of the Lit ...
in
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. In the early 21st century, the act was used to prosecute
whistleblower Whistleblowing (also whistle-blowing or whistle blowing) is the activity of a person, often an employee, revealing information about activity within a private or public organization that is deemed illegal, immoral, illicit, unsafe, unethical or ...
s such as
Thomas Andrews Drake Thomas Andrews Drake (born 1957) is a former senior executive of the National Security Agency (NSA), a decorated United States Air Force and United States Navy veteran, and a whistleblower. In 2010, the government alleged that Drake mishandled do ...
,
John Kiriakou John Chris Kiriakou ( ; born August 9, 1964) is an American whistleblower, author, journalist and former intelligence officer. Kiriakou is a columnist with Reader Supported News and co-host of ''Political Misfits'' on Sputnik Radio. He was jailed ...
, and
Edward Snowden Edward Joseph Snowden (born June 21, 1983) is a former National Security Agency (NSA) intelligence contractor and whistleblower who leaked classified documents revealing the existence of global surveillance programs. Born in 1983 in Elizabeth ...
, as well as officials who communicated with journalists for innocuous reasons, such as Stephen Jin-Woo Kim. , India and Pakistan were holding several hundred prisoners of each other's country for minor violations like trespass or visa overstay, often with accusations of espionage attached. Some of these include cases where Pakistan and India both deny citizenship to these people, leaving them stateless. The BBC reported in 2012 on one such case, that of Mohammed Idrees, who was held under Indian police control for approximately 13 years for overstaying his 15-day visa by 2–3 days after seeing his ill parents in 1999. Much of the 13 years were spent in prison waiting for a hearing, and more time was spent homeless or living with generous families. The Indian
People's Union for Civil Liberties People's Union for Civil Liberties (PUCL) is a human rights body formed in India in 1976 by Jayaprakash Narayan, as the People's Union for Civil Liberties and Democratic Rights (PUCLDR). Background Indian emergency Jayaprakash Narayan was ...
and Human Rights Law Network both decried his treatment. The BBC attributed some of the problems to tensions caused by the
Kashmir conflict The Kashmir conflict is a territorial conflict over the Kashmir region, primarily between India and Pakistan, and also between China and India in the northeastern portion of the region. The conflict started after the partition of India in 1 ...
.


Espionage law in the UK

From ancient times, the penalty for espionage in many countries was execution. This was true right up until the era of
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
; for example, Josef Jakobs was a Nazi spy who parachuted into Great Britain in 1941 and was executed for espionage. Espionage is illegal in the UK under the
National Security Act 2023 The National Security Act 2023 (c. 32) is an act of the Parliament of the United Kingdom which introduced new measures intended to strengthen United Kingdom national security against espionage, interference in the political system, sabotage, a ...
, which repealed prior Official Secrets Acts and creates three separate offences for espionage. A person is liable to be imprisoned for life for committing an offence under Section 1 of the Act, or 14 years for an offence under Sections 2 and 3


Government intelligence law and its distinction from espionage

Government intelligence is very much distinct from espionage, and is not illegal in the UK, providing that the organisations of individuals are registered, often with the ICO, and are acting within the restrictions of the Regulation of Investigatory Powers Act (RIPA). 'Intelligence' is considered legally as "information of all sorts gathered by a government or organisation to guide its decisions. It includes information that may be both public and private, obtained from much different public or secret sources. It could consist entirely of information from either publicly available or secret sources, or be a combination of the two." However, espionage and intelligence can be linked. According to the MI5 website, "foreign intelligence officers acting in the UK under diplomatic cover may enjoy immunity from prosecution. Such persons can only be tried for spying (or, indeed, any criminal offence) if diplomatic immunity is waived beforehand. Those officers operating without diplomatic cover have no such immunity from prosecution". There are also laws surrounding government and organisational intelligence and surveillance. Generally, the body involved should be issued with some form of warrant or permission from the government and should be enacting their procedures in the interest of protecting national security or the safety of public citizens. Those carrying out intelligence missions should act within not only RIPA but also the Data Protection Act and Human Rights Act. However, there are spy equipment laws and legal requirements around intelligence methods that vary for each form of intelligence enacted.


Military intelligence and military justice

In war, espionage is considered permissible as many nations recognize the inevitability of opposing sides seeking intelligence each about the dispositions of the other. To make the mission easier and successful,
combatant Combatant is the legal status of a person entitled to directly participate in hostilities during an armed conflict, and may be intentionally targeted by an adverse party for their participation in the armed conflict. Combatants are not afforded i ...
s wear
disguise A disguise can be anything incognito which conceals one's identity or changes a person's physical appearance, including a wig, glasses, makeup, fake moustache, costume or other items. Camouflage is a type of disguise for people, animals and o ...
s to conceal their true identity from the enemy while penetrating enemy lines for intelligence gathering. However, if they are caught behind enemy lines in disguises, they are not entitled to
prisoner-of-war A prisoner of war (POW) is a person held captive by a belligerent power during or immediately after an armed conflict. The earliest recorded usage of the phrase "prisoner of war" dates back to 1610. Belligerents hold prisoners of war for a ...
status and subject to
prosecution A prosecutor is a legal representative of the prosecution in states with either the adversarial system, which is adopted in common law, or inquisitorial system, which is adopted in Civil law (legal system), civil law. The prosecution is the ...
and punishment—including
execution Capital punishment, also known as the death penalty and formerly called judicial homicide, is the state-sanctioned killing of a person as punishment for actual or supposed misconduct. The sentence ordering that an offender be punished in ...
. The
Hague Convention of 1907 The Hague Conventions of 1899 and 1907 are a series of international treaties and declarations negotiated at two international peace conferences at The Hague in the Netherlands. Along with the Geneva Conventions, the Hague Conventions were amon ...
addresses the status of wartime spies, specifically within "Laws and Customs of War on Land" (Hague IV); October 18, 1907: Chapter II Spies". Article 29 states that a person is considered a spy who, acts clandestinely or on false pretences, infiltrates enemy lines with the intention of acquiring intelligence about the enemy and communicate it to the
belligerent A belligerent is an individual, group, country, or other entity that acts in a hostile manner, such as engaging in combat. The term comes from the Latin ''bellum gerere'' ("to wage war"). Unlike the use of ''belligerent'' as an adjective meanin ...
during times of war. Soldiers who penetrate enemy lines in proper uniforms for the purpose of acquiring intelligence are not considered spies but are
lawful combatants Combatant is the legal status of a person entitled to directly participate in hostilities during an armed conflict, and may be intentionally targeted by an adverse party for their participation in the armed conflict. Combatants are not afforded i ...
entitled to be treated as prisoners of war upon capture by the enemy. Article 30 states that a spy captured behind enemy lines may only be punished following a trial. However, Article 31 provides that if a spy successfully rejoined his own military and is then captured by the enemy as a lawful combatant, he cannot be punished for his previous acts of espionage and must be treated as a prisoner of war. This provision does not apply to citizens who committed
treason Treason is the crime of attacking a state (polity), state authority to which one owes allegiance. This typically includes acts such as participating in a war against one's native country, attempting to Coup d'état, overthrow its government, spy ...
against their own country or co-belligerents of that country and may be captured and prosecuted at any place or any time regardless whether he rejoined the military to which he belongs or not or during or after the war. The ones that are excluded from being treated as spies while behind enemy lines are escaping prisoners of war and downed
airmen An airman is a member of an air force or air arm of a nation's armed forces. In certain air forces, it can also refer to a specific enlisted rank. An airman can also be referred to as a soldier in other definitions. As a military rank designat ...
as
international law International law, also known as public international law and the law of nations, is the set of Rule of law, rules, norms, Customary law, legal customs and standards that State (polity), states and other actors feel an obligation to, and generall ...
distinguishes between a disguised spy and a disguised escaper. It is permissible for these groups to wear enemy uniforms or civilian clothes in order to facilitate their escape back to friendly lines so long as they do not attack enemy forces, collect military intelligence, or engage in similar military operations while so disguised. Soldiers who are wearing enemy uniforms or civilian clothes simply for the sake of warmth along with other purposes rather than engaging in espionage or similar military operations while so attired are also excluded from being treated as unlawful combatants.
Saboteurs Sabotage is a deliberate action aimed at weakening a polity, government, effort, or organization through subversion, obstruction, demoralization, destabilization, division, disruption, or destruction. One who engages in sabotage is a ''sab ...
are treated as spies as they too wear disguises behind enemy lines for the purpose of waging destruction on an enemy's vital targets in addition to intelligence gathering. For example, during
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, eight German agents entered the U.S. in June 1942 as part of
Operation Pastorius Operation Pastorius was a failed German intelligence plan for sabotage inside the United States during World War II. The operation was staged in June 1942 and was to be directed against strategic American economic targets. The operation was n ...
, a sabotage mission against U.S. economic targets. Two weeks later, all were arrested in civilian clothes by the
FBI The Federal Bureau of Investigation (FBI) is the domestic Intelligence agency, intelligence and Security agency, security service of the United States and Federal law enforcement in the United States, its principal federal law enforcement ag ...
thanks to two German agents betraying the mission to the U.S. Under the Hague Convention of 1907, these Germans were classified as spies and tried by a
military tribunal Military justice (or military law) is the body of laws and procedures governing members of the armed forces. Many nation-states have separate and distinct bodies of law that govern the conduct of members of their armed forces. Some states us ...
in
Washington D.C. Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with ...
On August 3, 1942, all eight were found guilty and sentenced to death. Five days later, six were executed by
electric chair The electric chair is a specialized device used for capital punishment through electrocution. The condemned is strapped to a custom wooden chair and electrocuted via electrodes attached to the head and leg. Alfred P. Southwick, a Buffalo, New Yo ...
at the District of Columbia jail. Two who had given evidence against the others had their sentences reduced by President
Franklin D. Roosevelt Franklin Delano Roosevelt (January 30, 1882April 12, 1945), also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. He is the longest-serving U.S. president, and the only one to have served ...
to prison terms. In 1948, they were released by President
Harry S. Truman Harry S. Truman (May 8, 1884December 26, 1972) was the 33rd president of the United States, serving from 1945 to 1953. As the 34th vice president in 1945, he assumed the presidency upon the death of Franklin D. Roosevelt that year. Subsequen ...
and deported to the American Zone of occupied Germany. The U.S. codification of enemy spies is Article 106 of the
Uniform Code of Military Justice The Uniform Code of Military Justice (UCMJ) is the foundation of the system of military justice of the armed forces of the United States. The UCMJ was established by the United States Congress in accordance with their constitutional authority ...
. This provides a mandatory death sentence if a person captured in the act is proven to be "lurking as a spy or acting as a spy in or about any place, vessel, or aircraft, within the control or jurisdiction of any of the armed forces, or in or about any shipyard, any manufacturing or industrial plant, or any other place or institution engaged in work in aid of the prosecution of the war by the United States, or elsewhere".


Spy fiction

Spies have long been favorite topics for novelists and filmmakers. An early example of espionage literature is '' Kim'' by the English novelist
Rudyard Kipling Joseph Rudyard Kipling ( ; 30 December 1865 – 18 January 1936)''The Times'', (London) 18 January 1936, p. 12. was an English journalist, novelist, poet, and short-story writer. He was born in British Raj, British India, which inspired much ...
, with a description of the training of an intelligence agent in the
Great Game The Great Game was a rivalry between the 19th-century British Empire, British and Russian Empire, Russian empires over influence in Central Asia, primarily in Emirate of Afghanistan, Afghanistan, Qajar Iran, Persia, and Tibet. The two colonia ...
between the UK and
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
in 19th century
Central Asia Central Asia is a region of Asia consisting of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. The countries as a group are also colloquially referred to as the "-stans" as all have names ending with the Persian language, Pers ...
. An even earlier work was
James Fenimore Cooper James Fenimore Cooper (September 15, 1789 – September 14, 1851) was an American writer of the first half of the 19th century, whose historical romances depicting colonial and indigenous characters from the 17th to the 19th centuries brought h ...
's classic novel, '' The Spy,'' written in 1821, about an American spy in New York during the Revolutionary War. During the many 20th-century spy scandals, much information became publicly known about national spy agencies and dozens of real-life secret agents. These sensational stories piqued public interest in a profession largely off-limits to human interest news reporting, a natural consequence of the secrecy inherent in their work. To fill in the blanks, the popular conception of the secret agent has been formed largely by 20th and 21st-century fiction and film. Attractive and sociable real-life agents such as
Valerie Plame Valerie Elise Plame (born August 13, 1963) is an American writer, spy, novelist, and former Central Intelligence Agency (CIA) officer. As the subject of the 2003 Plame affair, also known as the CIA leak scandal, Plame's identity as a CIA offic ...
find little employment in serious fiction, however. The fictional secret agent is more often a loner, sometimes amoral—an
existential Existentialism is a family of philosophical views and inquiry that explore the human individual's struggle to lead an authentic life despite the apparent absurdity or incomprehensibility of existence. In examining meaning, purpose, and value ...
hero operating outside the everyday constraints of society. Loner spy personalities may have been a stereotype of convenience for authors who already knew how to write loner
private investigator A private investigator (often abbreviated to PI; also known as a private detective, an inquiry agent or informally a wikt:private eye, private eye) is a person who can be hired by individuals or groups to undertake investigatory law services. ...
characters that sold well from the 1920s to the present. Johnny Fedora achieved popularity as a fictional agent of early
Cold War espionage Cold War espionage describes the intelligence gathering activities during the Cold War ( 1947–1991) between the Western allies (primarily the US and Western Europe) and the Eastern Bloc (primarily the Soviet Union and allied countries of the ...
, but
James Bond The ''James Bond'' franchise focuses on James Bond (literary character), the titular character, a fictional Secret Intelligence Service, British Secret Service agent created in 1953 by writer Ian Fleming, who featured him in twelve novels ...
is the most commercially successful of the many spy characters created by intelligence insiders during that struggle. Other fictional agents include Le Carré's
George Smiley George Smiley OBE is a fictional character created by John le Carré. Smiley is a career intelligence officer with " The Circus", the British overseas intelligence agency. He is a central character in the novels '' Call for the Dead'', '' A ...
, and Harry Palmer as played by
Michael Caine Sir Michael Caine (born Maurice Joseph Micklewhite, 14 March 1933) is a retired English actor. Known for his distinct Cockney accent, he has appeared in more than 160 films over Michael Caine filmography, a career that spanned eight decades an ...
. Jumping on the spy bandwagon, other writers also started writing about spy fiction featuring female spies as protagonists, such as '' The Baroness'', which has more graphic action and sex, as compared to other novels featuring male protagonists. Spy fiction has permeated the
video game A video game or computer game is an electronic game that involves interaction with a user interface or input device (such as a joystick, game controller, controller, computer keyboard, keyboard, or motion sensing device) to generate visual fe ...
world as well, in games such as ''
Perfect Dark ''Perfect Dark'' is a 2000 first-person shooter developed and published by Rare for the Nintendo 64. The first game of the '' Perfect Dark'' series, it follows Joanna Dark, an agent of the Carrington Institute research centre, as she attempts ...
'', '' GoldenEye 007'', '' No One Lives Forever'', ''
Tom Clancy's Splinter Cell ''Tom Clancy's Splinter Cell'' is a series of stealth action-adventure video games, the first of which was released in 2002, and their tie-in novels that were endorsed by Tom Clancy. The series follows Sam Fisher, a highly trained agent of a ...
'' and the ''Metal Gear'' series. Espionage has also made its way into comedy depictions. The 1960s TV series ''
Get Smart ''Get Smart'' is an American comedy television series parodying the Spy fiction, secret agent genre that had become widely popular in the first half of the 1960s with the release of the ''James Bond'' films. It was created by Mel Brooks and Bu ...
'', the 1983 Finnish film ''
Agent 000 and the Deadly Curves ''Agentti 000 ja kuolema kurvit'' (English title ''Agent 000 and the Deadly Curves'') is a 1983 in film, 1983 Cinema of Finland, Finnish spy film, spy comedy film, comedy film directed by Visa Mäkinen and written by Ismo Sajakorpi. The film stars ...
'', and ''
Johnny English ''Johnny English'' is a 2003 spy action comedy film directed by Peter Howitt and written by Neal Purvis, Robert Wade and William Davies. It is a British-French venture produced by StudioCanal and Working Title Films, and distributed by Unive ...
'' film trilogy portrays an inept spy, while the 1985 movie ''
Spies Like Us ''Spies Like Us'' is a 1985 American spy comedy film directed by John Landis, and starring Chevy Chase, Dan Aykroyd, Steve Forrest, and Donna Dixon. The film presents the comic adventures of two novice intelligence agents sent to the Soviet ...
'' depicts a pair of none-too-bright men sent to the Soviet Union to investigate a missile. The historical novel ''The Emperor and the Spy'' highlights the adventurous life of U.S. Colonel Sidney Forrester Mashbir, who during the 1920s and 1930s attempted to prevent war with Japan, and when war did erupt, he became General MacArthur's top advisor in the Pacific Theater of World War Two. Black Widow is also a fictional agent who was introduced as a
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
n spy, an antagonist of the superhero
Iron Man Iron Man is a superhero appearing in American comic books published by Marvel Comics. Co-created by writer and editor Stan Lee, developed by scripter Larry Lieber, and designed by artists Don Heck and Jack Kirby, the character first appearan ...
. She later became an agent of the fictional spy agency S.H.I.E.L.D. and a member of the superhero team the
Avengers Avenger(s) or The Avenger(s) may refer to: Arts, entertainment, and media Marvel Comics universe * Avengers (comics), a team of superheroes **Avengers (Marvel Cinematic Universe), a central team of protagonist superheroes of "The Infinity Sag ...
. Real espionage is actually quite boring work.


See also

*
American espionage in China This is a list of activities carried out by U.S. intelligence agencies in mainland China and Taiwan. Activities in the Republic of China (Taiwan) 1950–1955 Chiang Kai-shek, President of the Republic of China (Taiwan), suspected that the Unite ...
*
Central Intelligence Agency The Central Intelligence Agency (CIA; ) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and ...
*
Chinese espionage in the United States The United States has often accused the People's Republic of China (PRC) of attempting to unlawfully acquire U.S. military technology and classified information as well as trade secrets of U.S. companiesFinkle, J. Menn, J., Viswanatha, J''U.S. ...
*
Clandestine operation A clandestine operation (op) is an intelligence or military operation carried out in such a way that the operation goes unnoticed by the general population or specific enemy forces. Until the 1970s, clandestine operations were primarily politic ...
*
Cover (intelligence gathering) A cover in foreign, military or police human intelligence or counterintelligence is the ostensible identity and role or position in an infiltrated organization assumed by a covert agent during a covert operation. Official cover In espionage, an ...
*
Covert operation A covert operation or undercover operation is a military or police operation involving a covert agent or troops acting under an assumed cover to conceal the identity of the party responsible. US law Under US law, the Central Intelligence A ...
*
Detective A detective is an investigator, usually a member of a law enforcement agency. They often collect information to solve crimes by talking to witnesses and informants, collecting physical evidence, or searching records in databases. This leads the ...
*
Federal Bureau of Investigation The Federal Bureau of Investigation (FBI) is the domestic Intelligence agency, intelligence and Security agency, security service of the United States and Federal law enforcement in the United States, its principal federal law enforcement ag ...
*
Foreign agent A foreign agent is any person or entity actively carrying out the interests of a foreign principal while located in another host country, generally outside the Diplomatic immunity, protections offered to those working in their official capacity fo ...
* History of Soviet espionage *
Human intelligence (intelligence gathering) Human intelligence (HUMINT, pronounced ) is List of intelligence gathering disciplines, intelligence-gathering by means of human sources and interpersonal communication. It is distinct from more technical intelligence-gathering disciplines, such ...
*
Intelligence assessment Intelligence assessment, is a specific phase of the intelligence cycle which oversees the development of behavior forecasts or recommended courses of action to the leadership of an organization, based on wide ranges of available overt and cover ...
* James Gannon (author) *
List of intelligence agencies This is a list of intelligence agencies by country. It includes only currently operational institutions which are in the public domain. The list is not intended to be exhaustive. An intelligence agency is a government agency responsible for the ...
*
List of intelligence gathering disciplines This is a list of intelligence gathering disciplines. HUMINT Human intelligence (HUMINT) are gathered from a person in the location in question. Sources can include the following: * Advisors or foreign internal defense (FID) personnel wor ...
*
MI5 MI5 ( Military Intelligence, Section 5), officially the Security Service, is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Gov ...
*
Military intelligence Military intelligence is a military discipline that uses information collection and analysis List of intelligence gathering disciplines, approaches to provide guidance and direction to assist Commanding officer, commanders in decision making pr ...
*
Secret identity A secret identity is a person's code name, cryptonym, disguise, incognito, Cover (intelligence gathering), cover and/or alter ego which is not known to the general populace, most often used in fiction. Brought into popular culture by the Scarlet Pi ...
*
Secret service A secret service is a government agency, intelligence agency, or the activities of a government agency, concerned with the gathering of intelligence data. The tasks and powers of a secret service can vary greatly from one country to another. For i ...
*
Sleeper agent A sleeper agent is a spy or operative who is placed in a target country or organization, not to undertake an immediate mission, but instead to act as a potential asset on short notice if activated in the future. Even if not activated, the "sle ...
*
Special agent In the United States, a special agent is an official title used to refer to certain investigators or detectives of federal, military, tribal, or state agencies who primarily serve in criminal investigatory positions. Additionally, some special ...
* Spying on United Nations leaders by United States diplomats *
Undercover operation A covert operation or undercover operation is a military or police operation involving a covert agent or troops acting under an assumed cover to conceal the identity of the party responsible. US law Under US law, the Central Intelligence Ag ...


References


Citations


Works cited

* *


Further reading

* Aldrich, Richard J., and Christopher Andrew, eds. ''Secret Intelligence: A Reader'' (2nd ed. 2018); focus on the 21st century; reprints 30 essays by scholars
excerpt
* Andrew, Christopher, ''The Secret World: A History of Intelligence'', 2018. * Burnham, Frederick Russell, ''Taking Chances'', 1944. * Felix, Christopher seudonym for James McCarger ''A Short Course in the Secret War, 4th Edition''. Madison Books, November 19, 2001. * Friedman, George. ''America's Secret War: Inside the Hidden Worldwide Struggle Between the United States and Its Enemies'' 2005 *
Gopnik, Adam Adam Gopnik (born August 24, 1956) is an American writer and essayist, who was raised in Montreal, Canada. He is best known as a staff writer for ''The New Yorker,'' to which he has contributed nonfiction, fiction, memoir, and criticism since 19 ...
, "Spy vs. Spy vs. Spy: How valuable is espionage?", ''
The New Yorker ''The New Yorker'' is an American magazine featuring journalism, commentary, criticism, essays, fiction, satire, cartoons, and poetry. It was founded on February 21, 1925, by Harold Ross and his wife Jane Grant, a reporter for ''The New York T ...
'', 2 September 2019, pp. 53–59. "There seems to be a paranoid paradox of espionage: the better your intelligence, the dumber your conduct; the more you know, the less you anticipate.... Hard-won information is ignored or wildly misinterpreted.... thappens again and again
hat A hat is a Headgear, head covering which is worn for various reasons, including protection against weather conditions, ceremonial reasons such as university graduation, religious reasons, safety, or as a fashion accessory. Hats which incorpor ...
a seeming national advance in intelligence is squandered through cross-bred confusion, political rivalry, mutual bureaucratic suspicions, intergovernmental competition, and fear of the press (as well as leaks to the press), all seasoned with dashes of sexual jealousy and adulterous intrigue." (p. 54.) * Jeffreys-Jones, Rhodri. ''In Spies, We Trust: The Story of Western Intelligence'' (2013), covers U.S. and Britain * Jenkins, Peter. ''Surveillance Tradecraft: The Professional's Guide to Surveillance Training'' * Kahn, David, ''The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet'', 1996 revised edition. First published 1967. * Keegan, John, ''Intelligence in War: Knowledge of the Enemy from Napoleon to Al-Qaeda'', 2003. * Knightley, Phillip, ''The Second Oldest Profession: Spies and Spying in the Twentieth Century'', Norton, 1986. * Krugman, Paul, "The American Way of Economic war: Is Washington Overusing Its Most Powerful Weapons?" (review of
Henry Farrell Henry Farrell (September 27, 1920 – March 29, 2006) was an American novelist and screenwriter, best known as the author of the renowned gothic horror story ''What Ever Happened to Baby Jane? (novel), What Ever Happened to Baby Jane?'', wh ...
and Abraham Newman, ''Underground Empire: How America Weaponized the World Economy'', Henry Holt, 2023, 288 pp.), ''
Foreign Affairs ''Foreign Affairs'' is an American magazine of international relations and foreign policy of the United States, U.S. foreign policy published by the Council on Foreign Relations, a nonprofit organization, nonprofit, nonpartisan, membership or ...
'', vol. 103, no. 1 (January/February 2024), pp. 150–156. "The .S.dollar is one of the few currencies that almost all major banks will accept, and... the most widely used... As a result, the dollar is the currency that many companies must use... to do international business." (p. 150.) " cal banks facilitating that trade... normally... buy U.S. dollars and then use dollars to buy nother local currency To do so, however, the banks must have access to the U.S. financial system and... follow rules laid out by Washington." (pp. 151–152.) "But there is another, lesser-known reason why the .S.commands overwhelming economic power. Most of the world's fiber-optic cables, which carry data and messages around the planet, travel through the United States." (p. 152.) " e U.S. government has installed 'splitters':
prism PRISM is a code name for a program under which the United States National Security Agency (NSA) collects internet communications from various U.S. internet companies. The program is also known by the SIGAD . PRISM collects stored internet ...
s that divide the beams of light carrying information into two streams. One... goes on to the intended recipients, ... the other goes to the
National Security Agency The National Security Agency (NSA) is an intelligence agency of the United States Department of Defense, under the authority of the director of national intelligence (DNI). The NSA is responsible for global monitoring, collection, and proces ...
, which then uses high-powered
computation A computation is any type of arithmetic or non-arithmetic calculation that is well-defined. Common examples of computation are mathematical equation solving and the execution of computer algorithms. Mechanical or electronic devices (or, hist ...
to analyze the data. As a result, the .S.can monitor almost all international communication." (p. 154) This has allowed the U.S. "to effectively cut
Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...
out of the world financial system... Iran's economy stagnated... Eventually, Tehran agreed to cut back its
nuclear Nuclear may refer to: Physics Relating to the nucleus of the atom: *Nuclear engineering *Nuclear physics *Nuclear power *Nuclear reactor *Nuclear weapon *Nuclear medicine *Radiation therapy *Nuclear warfare Mathematics * Nuclear space *Nuclear ...
programs in exchange for relief." (pp. 153–154.) " few years ago, American officials... were in a panic about he Chinese company
Huawei Huawei Technologies Co., Ltd. ("Huawei" sometimes stylized as "HUAWEI"; ; zh, c=华为, p= ) is a Chinese multinational corporationtechnology company in Longgang, Shenzhen, Longgang, Shenzhen, Guangdong. Its main product lines include teleco ...
... which... seemed poised to supply 5G equipment to much of the planet hereby possiblygiv ngChina the power to eavesdrop on the rest of the world – just as the .S.has done.... The .S.learned that Huawei had been dealing surreptitiously with Iran – and therefore violating U.S. sanctions. Then, it... used its special access to information on international bank data to
how How may refer to: * How (greeting), a word used in some misrepresentations of Native American/First Nations speech * How, an interrogative word in English grammar Art and entertainment Literature * ''How'' (book), a 2007 book by Dov Seidman ...
that uaweis
chief financial officer A chief financial officer (CFO) is an officer of a company or organization who is assigned the primary responsibility for making decisions for the company for projects and its finances; i.a.: financial planning, management of financial risks, ...
,
Meng Wanzhou Meng Wanzhou ( zh, c=孟晚舟; born 13 February 1972), also known as Cathy Meng and Sabrina Meng, also informally known in China as the "Princess of Huawei", is a Chinese business executive. She is the deputy chair of the board and chief fin ...
(... the founder's daughter), had committed
bank fraud Bank fraud is the use of potentially illegal means to obtain money, assets, or other property owned or held by a financial institution, or to obtain money from depositors by fraudulently posing as a bank or other financial institution. In many ins ...
by falsely telling the British financial services company
HSBC HSBC Holdings plc ( zh, t_hk=滙豐; initialism from its founding member The Hongkong and Shanghai Banking Corporation) is a British universal bank and financial services group headquartered in London, England, with historical and business li ...
that her company was not doing business with Iran. Canadian authorities, acting on a U.S. request, arrested her... in December 2018. After... almost three years under house arrest... Meng... was allowed to return to China... But by
hen Hen commonly refers to a female animal: a female chicken, other gallinaceous bird, any type of bird in general, or a lobster. It is also a slang term for a woman. Hen, HEN or Hens may also refer to: Places Norway *Hen, Buskerud, a village in R ...
the prospects for Chinese dominance of 5G had vanished..." (pp. 154–155.) Farrell and Newman, writes Krugman, "are worried about the possibility of .S. ''Underground Empire''overreach. the .S.weaponizes the dollar against too many countries, they might... band together and adopt alternative methods of international payment. If countries become deeply worried about U.S. spying, they could lay fiber-optic cables that bypass the .S. And if Washington puts too many restrictions on American exports, foreign firms might turn away from U.S. technology." (p. 155.) * Lerner, Brenda Wilmoth & K. Lee Lerner, eds. ''Terrorism: essential primary sources'' Thomas Gale 2006 * Lerner, K. Lee and Brenda Wilmoth Lerner, eds. ''Encyclopedia of Espionage, Intelligence and Security'' (2003), worldwide recent coverage 1100 pages. * May, Ernest R. (ed.). ''Knowing One's Enemies: Intelligence Assessment Before the Two World Wars'' (1984). * O'Toole, George. ''Honorable Treachery: A History of U.S. Intelligence, Espionage, Covert Action from the American Revolution to the CIA'' 1991 * Murray, Williamson, and Allan Reed Millett, eds. ''Calculations: net assessment and the coming of World War II'' (1992). * Owen, David. ''Hidden Secrets: A Complete History of Espionage and the Technology Used to Support It'' * Richelson, Jeffery T. ''A Century of Spies: Intelligence in the Twentieth Century'' (1977) * Richelson, Jeffery T. ''The U.S. Intelligence Community'' (1999, fourth edition) * Shaw, Tamsin, "Ethical Espionage" (review of Calder Walton, ''Spies: The Epic Intelligence War Between East and West'', Simon and Schuster, 2023, 672 pp.; and
Cécile Fabre Cécile Fabre (born 1971) is a French philosopher, serving as professor of philosophy at the University of Oxford. Since 2014 she has been a senior research fellow at All Souls College, Oxford. Her research focuses on political philosophy, the ...
, ''Spying Through a Glass Darkly: The Ethics of Espionage and Counter-Intelligence'', Oxford University Press, 251 pp., 2024), ''
The New York Review of Books ''The New York Review of Books'' (or ''NYREV'' or ''NYRB'') is a semi-monthly magazine with articles on literature, culture, economics, science and current affairs. Published in New York City, it is inspired by the idea that the discussion of ...
'', vol. LXXI, no. 2 (8 February 2024), pp. 32, 34–35. " Walton's view, there was scarcely a US covert action that was a long-term strategic success, with the possible exception of intervention in the
Soviet–Afghan War The Soviet–Afghan War took place in the Democratic Republic of Afghanistan from December 1979 to February 1989. Marking the beginning of the 46-year-long Afghan conflict, it saw the Soviet Union and the Armed Forces of the Democratic Republic o ...
(a disastrous military fiasco for the
Soviets The Soviet people () were the citizens and nationals of the Soviet Union. This demonym was presented in the ideology of the country as the "new historical unity of peoples of different nationalities" (). Nationality policy in the Soviet Union ...
) and perhaps support for the anti-Soviet
Solidarity movement Solidarity or solidarism is an awareness of shared interests, objectives, standards, and sympathies creating a psychological sense of unity of groups or classes. True solidarity means moving beyond individual identities and single issue politics ...
in
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...
." (p. 34.) * Smith, W. Thomas Jr. ''
Encyclopedia of the Central Intelligence Agency ''Encyclopedia of the Central Intelligence Agency'' is a 2003 book by W. Thomas Smith Jr. It is an encyclopedic work on the Central Intelligence Agency (CIA), the only independent agency of the United States federal government that is tasked wit ...
'' (2003) * Tuchman, Barbara W., ''The Zimmermann Telegram'', New York, Macmillan, 1962. * Warner, Michael. ''The Rise and Fall of Intelligence: An International Security History'' (2014) * Zegart, Amy B. ''Spies, Lies, and Algorithms: The History and Future of American Intelligence'' (2022), university textbook
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