The Chaos Computer Club (CCC) is Europe's largest association of
hackers with 7,700 registered members.
Founded in 1981, the association is incorporated as an ''
eingetragener Verein
An (; "registered association" or "incorporated association"), abbreviated (), is a legal status for a civil registration, registered voluntary association in Germany. While any group may be called a , registration as confers many legal bene ...
'' in Germany, with local chapters (called ''Erfa-Kreise'') in various cities in Germany and the surrounding countries, particularly where there are German-speaking communities.
Since 1985, some chapters in Switzerland have organized an independent sister association called the (CCC-CH) instead.
The CCC describes itself as "a galactic community of life forms, independent of age, sex, race or societal orientation, which strives across borders for freedom of information…". In general, the CCC advocates more transparency in government,
freedom of information, and the
human right
Human rights are universally recognized moral principles or norms that establish standards of human behavior and are often protected by both national and international laws. These rights are considered inherent and inalienable, meaning t ...
to communication. Supporting the principles of the
hacker ethic, the club also fights for free universal access to computers and technological infrastructure as well as the use of
open-source software
Open-source software (OSS) is Software, computer software that is released under a Open-source license, license in which the copyright holder grants users the rights to use, study, change, and Software distribution, distribute the software an ...
.
The CCC spreads an entrepreneurial vision refusing capitalist control.
It has been characterised as "…one of the most influential digital organisations anywhere, the centre of German digital culture,
hacker culture
The hacker culture is a subculture of individuals who enjoy—often in collective effort—the intellectual challenge of creatively overcoming the limitations of software systems or electronic hardware (mostly digital electronics), ...
, hacktivism, and the intersection of any discussion of democratic and digital rights".
Members of the CCC have demonstrated and publicized a number of important information security problems.
The CCC frequently criticizes new legislation and products with weak information security which endanger citizen rights or the privacy of users.
Notable members of the CCC regularly function as expert witnesses for the
German constitutional court, organize lawsuits and campaigns, or otherwise influence the political process.
Activities
Regular events

The CCC hosts the annual
Chaos Communication Congress
The Chaos Communication Congress is an annual hacker conference organized by the Chaos Computer Club. The congress features a variety of lectures and workshops on technical and political issues related to security, cryptography, privacy and ...
, Europe's biggest hacker gathering.
When the event was held in the
Hamburg congress center in 2013, it drew 9,000 guests.
For the 2016 installment, 11,000 guests were expected,
with additional viewers following the event via live streaming.
Every four years, the
Chaos Communication Camp is the outdoor alternative for hackers worldwide.
The CCC also held, from 2009 to 2013, a yearly conference called
SIGINT in
Cologne
Cologne ( ; ; ) is the largest city of the States of Germany, German state of North Rhine-Westphalia and the List of cities in Germany by population, fourth-most populous city of Germany with nearly 1.1 million inhabitants in the city pr ...
which focused on the impact of digitisation on society. The SIGINT conference was discontinued in 2014.
The four-day conference ''
Gulaschprogrammiernacht'' in
Karlsruhe
Karlsruhe ( ; ; ; South Franconian German, South Franconian: ''Kallsruh'') is the List of cities in Baden-Württemberg by population, third-largest city of the States of Germany, German state of Baden-Württemberg, after its capital Stuttgart a ...
is with more than 1,500 participants the second largest annual event.
Another yearly CCC event taking place on the Easter weekend is the
Easterhegg
Easterhegg (EH) is an annual hacker event by the German Chaos Computer Club. Since 2001 the Easterhegg takes place during the Easter
Easter, also called Pascha ( Aramaic: פַּסְחָא , ''paskha''; Greek: πάσχα, ''páskha'') o ...
, which is more workshop oriented than the other events.
The CCC often uses the
c-base station located in Berlin as an event location or as function rooms.
Publications and outreach
Video
The CCC publishes the irregular magazine ''
Datenschleuder'' (''data slingshot'') since 1984.
The Berlin chapter produces a monthly radio show called which picks up various technical and political topics in a two-hour
talk radio
Talk radio is a radio format containing discussion about topical issues and consisting entirely or almost entirely of original spoken word content rather than outside music. They may feature monologues, dialogues between the hosts, Interview (jo ...
show. The program is aired on a local radio station called and on the internet.
Other programs have emerged in the context of Chaosradio, including radio programs offered by some regional Chaos Groups and the podcast spin-off ''CRE'' by
Tim Pritlove.
Many of the chapters of CCC participate in the volunteer project ''Chaos macht Schule'' which supports teaching in local schools. Its aims are to improve technology and
media literacy of pupils, parents, and teachers.
CCC members are present in big tech companies and in administrative instances. One of the spokespersons of the CCC, as of 1986,
Andy Müller-Maguhn, was a member of the executive committee of the
ICANN
The Internet Corporation for Assigned Names and Numbers (ICANN ) is a global multistakeholder group and nonprofit organization headquartered in the United States responsible for coordinating the maintenance and procedures of several dat ...
(Internet Corporation for Assigned Names and Numbers) between 2000 and 2002.
CryptoParty
The CCC sensitises and introduces people to the questions of data privacy. Some of its local chapters support or organize so called CryptoParties to introduce people to the basics of practical cryptography and internet anonymity.
History
Founding

The CCC was founded in West Berlin on 12 September 1981 at a table which had previously belonged to the
Kommune 1 in the rooms of the newspaper
Die Tageszeitung by
Wau Holland and others in anticipation of the prominent role that information technology would play in the way people live and communicate.
BTX-Hack
The CCC became world-famous in 1984 when they drew public attention to the security flaws of the German
Bildschirmtext
Bildschirmtext ( German "screen text", abbrev. Btx or BTX) was an online videotex system launched in West Germany in 1983 by the Deutsche Bundespost, the (West) German postal service.
Btx originally required special hardware (it was based o ...
computer network by causing it to debit
DM 134,000 () in a Hamburg bank in favor of the club. The money was returned the next day in front of the press. Prior to the incident, the system provider had failed to react to proof of the security flaw provided by the CCC, claiming to the public that their system was safe. Bildschirmtext was the biggest commercially available online system targeted at the general public in its region at that time, run and heavily advertised by the German telecommunications agency
Deutsche Bundespost
The (, ) was a German state-run postal service and telecommunications business founded in 1947. It was initially the second largest federal employer during its time. After staff reductions in the 1980s, the staff was reduced to roughly 543,20 ...
which also strove to keep up-to-date alternatives out of the market.
Karl Koch
In 1987, the CCC was peripherally involved in the first
cyberespionage
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 ...
case to make international headlines. A group of
German hackers led by
Karl Koch, who was loosely affiliated with the CCC, was arrested for breaking into US government and corporate computers, and then selling operating-system source code to the Soviet
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 ...
.
This incident was portrayed in the movie ''
23''.
GSM-Hack
In April 1998, the CCC successfully demonstrated the cloning of a
GSM
The Global System for Mobile Communications (GSM) is a family of standards to describe the protocols for second-generation (2G) digital cellular networks, as used by mobile devices such as mobile phones and Mobile broadband modem, mobile broadba ...
customer card, breaking the
COMP128 encryption
In Cryptography law, cryptography, encryption (more specifically, Code, encoding) is the process of transforming information in a way that, ideally, only authorized parties can decode. This process converts the original representation of the inf ...
algorithm used at that time by many GSM
SIMs.
Project Blinkenlights

In 2001, the CCC celebrated its twentieth birthday with an interactive light installation dubbed ''Project Blinkenlights'' that turned the building
Haus des Lehrers in Berlin into a giant computer screen. A follow-up installation, ''Arcade'', was created in 2002 by the CCC for the
Bibliothèque nationale de France
The (; BnF) is the national library of France, located in Paris on two main sites, ''Richelieu'' and ''François-Mitterrand''. It is the national repository of all that is published in France. Some of its extensive collections, including bo ...
. Later in October 2008 CCC's Project Blinkenlights went to
Toronto
Toronto ( , locally pronounced or ) is the List of the largest municipalities in Canada by population, most populous city in Canada. It is the capital city of the Provinces and territories of Canada, Canadian province of Ontario. With a p ...
,
Ontario
Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...
, Canada with project Stereoscope.
Schäuble fingerprints
In March 2008, the CCC acquired and published the fingerprints of German
Minister of the Interior
An interior minister (sometimes called a minister of internal affairs or minister of home affairs) is a cabinet official position that is responsible for internal affairs, such as public security, civil registration and identification, emergency ...
Wolfgang Schäuble. The magazine also included the fingerprint on a film that readers could use to fool
fingerprint readers. This was done to protest the use of biometric data in German identity devices such as
e-passports.
Staatstrojaner affair

The Staatstrojaner (''Federal
Trojan horse
In Greek mythology, the Trojan Horse () was a wooden horse said to have been used by the Greeks during the Trojan War to enter the city of Troy and win the war. The Trojan Horse is not mentioned in Homer, Homer's ''Iliad'', with the poem ending ...
'') is a
computer surveillance
A computer is a machine that can be Computer programming, programmed to automatically Execution (computing), carry out sequences of arithmetic or logical operations (''computation''). Modern digital electronic computers can perform generic set ...
program installed secretly on a suspect's computer, which the German police uses to
wiretap
Wiretapping, also known as wire tapping or telephone tapping, is the monitoring of telephone and Internet-based conversations by a third party, often by covert means. The wire tap received its name because, historically, the monitoring connecti ...
Internet telephony
Voice over Internet Protocol (VoIP), also known as IP telephony, is a set of technologies used primarily for voice communication sessions over Internet Protocol (IP) networks, such as the Internet. VoIP enables voice calls to be transmitted as ...
. This "source wiretapping" is the only feasible way to wiretap in this case, since Internet telephony programs will usually
encrypt
In cryptography, encryption (more specifically, encoding) is the process of transforming information in a way that, ideally, only authorized parties can decode. This process converts the original representation of the information, known as plai ...
the data when it leaves the computer. The
Federal Constitutional Court of Germany
The Federal Constitutional Court ( ; abbreviated: ) is the supreme court, supreme constitutional court for the Germany, Federal Republic of Germany, established by the constitution or Basic Law for the Federal Republic of Germany, Basic Law ...
has ruled that the police may only use such programs for telephony wiretapping, and for no other purpose, and that this restriction should be enforced through technical and legal means.
On 8 October 2011, the CCC published an analysis of the Staatstrojaner software. The software was found to have the ability to remote control the target computer, to capture
screenshots, and to fetch and run arbitrary extra code. The CCC says that having this functionality built in is in direct contradiction to the ruling of the constitutional court.
In addition, there were a number of security problems with the implementation. The software was controllable over the Internet, but the commands were sent completely
unencrypted, with no checks for authentication or integrity. This leaves any computer under surveillance using this software vulnerable to attack. The captured screenshots and audio files were encrypted, but so incompetently that the encryption was ineffective. All captured data was sent over a proxy server in the United States, which is problematic since the data is then temporarily outside the German
jurisdiction
Jurisdiction (from Latin 'law' and 'speech' or 'declaration') is the legal term for the legal authority granted to a legal entity to enact justice. In federations like the United States, the concept of jurisdiction applies at multiple level ...
.
The CCC's findings were widely reported in the German press.
This trojan has also been nicknamed
R2-D2
R2-D2 () or Artoo-Detoo is a fictional robot character in the ''Star Wars'' franchise created by George Lucas. He has appeared in ten of the eleven theatrical ''Star Wars'' films to date, including every film in the " Skywalker Saga", which inclu ...
[Basil Cupa]
Trojan Horse Resurrected: On the Legality of the Use of Government Spyware (Govware)
LISS 2013, pp. 419–428 because the string "C3PO-r2d2-POE" was found in its code;
another alias for it is 0zapftis ("It's tapped!" in
Bavarian, a sardonic reference to
Oktoberfest
Oktoberfest (; ) is the world's largest , featuring a beer festival and a travelling carnival, and is held annually in Munich, Bavaria, from mid- or late-September to the first Sunday in October. The annual event attracts more than seven milli ...
).
According to a
Sophos
Sophos Limited is a British security software and hardware company. It develops and markets managed security services and cybersecurity software and hardware, such as managed detection and response, incident response and endpoint security s ...
analysis, the trojan's behavior matches that described in a confidential memo between the German
Landeskriminalamt and a software firm called '; the memo was leaked on
WikiLeaks
WikiLeaks () is a non-profit media organisation and publisher of leaked documents. It is funded by donations and media partnerships. It has published classified documents and other media provided by anonymous sources. It was founded in 2006 by ...
in 2008.
Among other correlations is the dropper's file name , short for Skype Capture Unit Installer. The 64-bit Windows version installs a digitally signed driver, but signed by the non-existing
certificate authority
In cryptography, a certificate authority or certification authority (CA) is an entity that stores, signs, and issues digital certificates. A digital certificate certifies the ownership of a public key by the named subject of the certificate. Thi ...
"Goose Cert". DigiTask later admitted selling spy software to governments.
The
Federal Ministry of the Interior released a statement in which they denied that R2-D2 has been used by the
Federal Criminal Police Office (BKA); this statement however does not eliminate the possibility that it has been used by state-level German police forces. The BKA had previously announced however (in 2007) that they had somewhat similar trojan software that can inspect a computer's hard drive.
Domscheit-Berg affair
Former
WikiLeaks
WikiLeaks () is a non-profit media organisation and publisher of leaked documents. It is funded by donations and media partnerships. It has published classified documents and other media provided by anonymous sources. It was founded in 2006 by ...
spokesman
Daniel Domscheit-Berg was expelled from the national CCC (but not the Berlin chapter) in August 2011. This decision was revoked in February 2012.
As a result of his role in the expulsion, board member
Andy Müller-Maguhn was not reelected for another term.
Phone authentication systems
The CCC has repeatedly warned phone users of the weakness of biometric identification in the wake of the 2008 Schäuble fingerprints affair. In their "hacker ethics" the CCC includes "protect people data", but also "Computers can change your life for the better". The club regards privacy as an individual right: the CCC does not discourage people from sharing or storing personal information on their phones, but advocates better privacy protection, and the use of specific browsing and sharing techniques by users.
Apple TouchID
From a photograph of the user's fingerprint on a glass surface, using "easy everyday means", the biometrics hacking team of the CCC was able to unlock an iPhone 5S.
Samsung S8 iris recognition
The Samsung Galaxy S8's
iris recognition
Iris recognition is an automated method of biometrics, biometric identification that uses mathematical pattern-recognition techniques on video images of one or both of the iris (anatomy), irises of an individual's Human eye, eyes, whose complex ...
system claims to be "one of the safest ways to keep your phone locked and the contents private" as "patterns in your irises are unique to you and are virtually impossible to replicate", as quoted in official Samsung content. However, in some cases, using a high resolution photograph of the phone owner's iris and a lens, the CCC claimed to be able to trick the authentication system.
Fake Chaos Computer Club France
The Chaos Computer Club France (CCCF) was a fake hacker organisation created in 1989 in
Lyon
Lyon (Franco-Provençal: ''Liyon'') is a city in France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, southeast of Paris, north of Marseille, southwest of Geneva, Switzerland, north ...
(France) by
Jean-Bernard Condat, under the command of Jean-Luc Delacour, an agent of the
Direction de la surveillance du territoire governmental agency. The primary goal of the CCCF was to watch and to gather information about the French hacker community, identifying the hackers who could harm the country.
['']Phrack
''Phrack'' is an e-zine written by and for Hacker (computer security), hackers, first published November 17, 1985. It had a wide circulation which included both hackers and computer security professionals.
Originally covering subjects related to ...
'' No. 64
"A personal view of the french underground (1992–2007)"
2007: ''"A good example of this was the fake hacking meeting created in the middle 1990' so called the CCCF (Chaos Computer Club France) where a lot of hackers got busted under the active participation of a renegade hacker so called Jean-Bernard Condat."'' Journalist said that this organization also worked with the
French National Gendarmerie.
The CCCF had an
electronic magazine called ''Chaos Digest (ChaosD)''. Between 4 January 1993 and 5 August 1993, seventy-three issues were published ().
See also
*
''23'' (film)
*
c-base
*
Chaos Communication Congress
The Chaos Communication Congress is an annual hacker conference organized by the Chaos Computer Club. The congress features a variety of lectures and workshops on technical and political issues related to security, cryptography, privacy and ...
*
Chaosdorf, the local chapter of the Chaos Computer Club at Düsseldorf
*
Datenschleuder
*
Digitalcourage
*
Digital identity
A digital identity is data stored on Computer, computer systems relating to an individual, organization, application, or device. For individuals, it involves the collection of personal data that is essential for facilitating automated access to ...
*
Hacker culture
The hacker culture is a subculture of individuals who enjoy—often in collective effort—the intellectual challenge of creatively overcoming the limitations of software systems or electronic hardware (mostly digital electronics), ...
*
Information privacy
Information privacy is the relationship between the collection and dissemination of data, technology, the public expectation of privacy, contextual information norms, and the legal and political issues surrounding them. It is also known as dat ...
*
Netzpolitik.org
*
Project Blinkenlights
*
Security hacker
A security hacker or security researcher is someone who explores methods for breaching or bypassing defenses and exploiting weaknesses in a computer system or network. Hackers may be motivated by a multitude of reasons, such as profit, pro ...
*
Tron (hacker)
Boris Floricic (8 June 1972 – 17 October 1998), better known by his pseudonym Tron, was a German hacker and phreaker whose death in unclear circumstances has led to various conspiracy theories. He is also known for his Diplom thesis pr ...
*
Wau Holland Foundation
References
Further reading
Chaos Computer Club hackers 'have a conscience' BBC News
BBC News is an operational business division of the British Broadcasting Corporation (BBC) responsible for the gathering and broadcasting of news and current affairs in the UK and around the world. The department is the world's largest broad ...
, 2011-02-11
External links
*
CCC Events BlogChaosradio Podcast Network
{{Authority control
Computer clubs in Germany
Hacker groups
Organisations based in Hamburg