Counterintelligence
Counterintelligence (CI) refers to information gathered and activities conducted to protect against espionage, other intelligence activities, sabotage, or assassinations conducted for or on behalf of ...
Counterintelligence - Wikipedia
Estonian Internal Security Service
The Estonian Internal Security Service (Estonian: Kaitsepolitsei, officially Estonian: Kaitsepolitseiamet, KaPo for short) is a central national security institution of Republic of Estonia. I...
Military Security Agency
The Military Security Agency (Serbian: Војнобезбедносна Агенција, ВБА / Vojnobezbednosna Agencija, VBA) is the Serbian military security and counterintelligence agency under the Ministry of Defenc...
Military Security Agency - Wikipedia
MI5(g)
The MI5(g), or the MI5 G section, was a branch of the MI5 that was formed during World War I to address the war time espionage operation by the Indian revolutionary movement in Europe. The department ...
James Jesus Angleton
James Jesus Angleton (December 9, 1917 – May 11, 1987) was chief of the Central Intelligence Agency's Counterintelligence Staff from 1954 to 1975. His official position within the organization was "As...
James Jesus Angleton - Wikipedia
Association of Chief Police Officers
The Association of Chief Police Officers (ACPO), officially The Association of Chief Police Officers of England, Wales and Northern Ireland, was established in 1948 and is to be wound up in April 2015...
Gardner Hathaway
Gardner Rugg "Gus" Hathaway (March 13, 1925 - November 20, 2013) was from 1985 to 1990 chief of the CIA's Counterintelligence Staff and its Counterintelligence Center successor, succeeding George Kala...
Espionage organizations
Espionage is a subset of human intelligence, one of many intelligence collection methods, which are organized by intelligence collection management.This lists is restricted to organizations that opera...
Otto John
Otto John (19 March 1909 – 26 March 1997) was the first head of West Germany's domestic intelligence service, the Office for the Protection of the Constitution, from 1950 to 1954. He is best known for...
Otto John - Wikipedia
Funkspiel
Funkspiel (German: radio play) was the name given to a counter-espionage operation carried out by Nazi counter-intelligence during the Second World War. It consisted of using captured and "turned"...
Confusion agent
In espionage, a confusion agent is an individual who is dispatched by the sponsor for the primary purposeof confounding the intelligence or counterintelligence apparatus of another country rather than...
Australian Security Intelligence Organisation
149°8′40.1″E / 35.292667°S 149.144472°E / -35.292667; 149.144472The Australian Security Intelligence Organisation (ASIO; /ˈeɪzɪoʊ/) is Australia's national security service, w...
Australian Security Intelligence Organisation - Wikipedia
COINTELPRO
COINTELPRO (an acronym for COunter INTELligence PROgram) was a series of covert, and at times illegal, projects conducted by the United States Federal Bureau of Investigation (FBI) aimed at surveying,...
COINTELPRO - Wikipedia
Kenneth E. deGraffenreid
Kenneth E. deGraffenreid retired in 2012 from his position as Professor of Intelligence Studies at The Institute of World Politics where he taught since the graduate school's first summer session in 1...
InfraGard
InfraGard is a non-profit organization serving as a public-private partnership between U.S. businesses and the Federal Bureau of Investigation. The organization describes itself as an information shar...
InfraGard - Wikipedia
Countersurveillance
Countersurveillance refers to measures undertaken to prevent surveillance, including covert surveillance. Countersurveillance may include electronic methods such as bug sweeping, the process of detect...
Clandestine HUMINT and covert action
National governments deal in both intelligence and military special operations functions that either should be completely secret (i.e., clandestine: the existence of which is not known outside the rel...
Clandestine HUMINT and covert action - Wikipedia
Aldrich Ames
Aldrich Hazen Ames is an American who was convicted of espionage against his country in 1994. He is serving a life sentence without the possibility of parole in the high-security Allenwood U.S. Penite...
Aldrich Ames - Wikipedia
Philip Agee
Philip Burnett Franklin Agee (/ˈeɪdʒi/; July 19, 1935 – January 7, 2008) was a Central Intelligence Agency (CIA) case officer and writer, best known as author of the 1975 book, Inside the C...
Philip Agee - Wikipedia
FBI Counterintelligence Division
The Counterintelligence Division (CD) is a division of the National Security Branch of the Federal Bureau of Investigation. The Division protects the United States against foreign intelligence operati...
Office of the National Counterintelligence Executive
The Office of the National Counterintelligence Executive (ONCIX) directs national counterintelligence (CI) for the United States government and is responsible to the Director of National Intelligence ...
Red Orchestra (espionage)
The Red Orchestra (German: Die Rote Kapelle) was the name given by the Gestapo to an anti-Nazi resistance movement in Berlin, as well as to Soviet espionage rings operating in German-occupied Euro...
Red Orchestra (espionage) - Wikipedia
Dirty War
The Dirty War (Spanish: Guerra Sucia), also known as Process of National Reorganization (Spanish: Proceso de Reorganización Nacional or El Proceso), was the name used by the Argentine Military...
Dirty War - Wikipedia
Sasha (espionage)
Sasha was an alleged Soviet mole in the Central Intelligence Agency during the Cold War.
Under Public Law 96-450, or the "Mole Relief Act",C.I.A. employees accused of being Sasha and their careers...
MI5
The Security Service, commonly 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 alon...
MI5 - Wikipedia
Adolf Tolkachev
Adolf Georgievich Tolkachev Адольф Георгиевич Толкачёв (1927, Aktyubinsk, Kazakhstan – September 24, 1986) was a Soviet Union electronics engineer who provided key documents to the U.S. Central Intell...
Brian Kelley (CIA officer)
Brian Kelley (January 8, 1943 - September 19, 2011) was an American Central Intelligence Agency (CIA) agent. Kelley is a recipient of the Distinguished Career Intelligence Medal for his service.
...
Brian Kelley (CIA officer) - Wikipedia
Leslie James Bennett
Leslie James Bennett (1920 — October 18, 2003) was a British/Canadian citizen who spend most of his working life as a counter-intelligence official, first for Britain's GCHQ, and later for the RCMP S...