Security Service or security service may refer to:

Government

Security agency A security agency is a governmental organization that conducts intelligence activities for the internal security of a nation. They are the domestic cousins of foreign intelligence agencies, and typically conduct counterintelligence to thwart other ...

, a nation's institution for intelligence gathering * List of security agencies (MI5, NSA, KGB, etc.) * (SD), Nazi German agency which translates as "Security Service" *

MI5 The Security Service, also known as MI5 ( Military Intelligence, Section 5), is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Go ...

, also called the ''Security Service'', the United Kingdom's counter-intelligence and security agency *

U.S. Air Force Security Service Initially established as the Air Force (USAF) Security Group in June, 1948, the USAF Security Service (USAFSS) was activated as a major command on Oct 20, 1948 (For redesignations, see Successor units.) The USAFSS was a secretive branch of the ...

, a former designation of the US Air Force Intelligence, Surveillance and Reconnaissance Agency *

RCMP Security Service The RCMP Security Service (french: Service de sécurité de la GRC) was a branch of the Royal Canadian Mounted Police (RCMP) that had responsibility for domestic intelligence and security in Canada. It was replaced by the Canadian Security Intellige ...

, the Royal Canadian Mounted Police's political intelligence branch *

Swedish Security Service The Swedish Security Service ( sv, Säkerhetspolisen , abbreviated SÄPO ; until 1989 ''Rikspolisstyrelsens säkerhetsavdelning'', abbreviated RPS/Säk) is a Swedish government agency organised under the Ministry of Justice. It operates as a se ...

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 ...

, a government agency concerned with gathering intelligence data *

Secret police Secret police (or political police) are intelligence, security or police agencies that engage in covert operations against a government's political, religious, or social opponents and dissidents. Secret police organizations are characteristic of a ...

, a police agency beyond the law to protect the political power of a dictator or regime

Other

Security service (telecommunication) Security service is a service, provided by a layer of communicating open systems, which ensures adequate security of the systems or of data transfers as defined by ITU-T X.800 Recommendation. X.800 and ISO 7498-2 (Information processing systems � ...

, security architecture for the interconnection of open systems *

Security and Intelligence Services (India) SIS Group Enterprise (formerly Security and Intelligence Services (India)) is a private security firm in India, Australia and New Zealand. It was set up in 1985 by Ravindra Kishore Sinha who is an Indian billionaire businessman and journalist. w ...

Private security company A private security company (PSC) is a business entity which provides armed or unarmed security services and expertise to clients in the private or public sectors. Overview Private security companies are defined by the U.S. Bureau of Labor Sta ...

Private military company A private military company (PMC) or private military and security company (PMSC) is a private company providing armed combat or security services for financial gain. PMCs refer to their personnel as "security contractors" or "private military ...

Government

Other

See also