Counterintelligence failures
Countries with major counterintelligence failures are presented alphabetically. In each case, there is at least one systemic problem with seeking penetration agents when few or none may actually have ...
Wilhelm Canaris
Wilhelm Franz Canaris (1 January 1887 – 9 April 1945) was a German admiral, and chief of the Abwehr, the German military intelligence service, from 1935 to 1944. During the Second World War, he was am...
Wilhelm Canaris - Wikipedia
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
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
Anatoliy Golitsyn
Anatoliy Mikhaylovich Golitsyn CBE (Russian: Анатолий Михайлович Голицын; born August 25, 1926) is a Soviet KGB defector and author of two books about the long-term deception strategy of the KGB l...
Yuri Nosenko
Lt. Col. Yuri Ivanovich Nosenko (Russian: Юрий Иванович Носенко; October 30, 1927 – August 23, 2008) was a KGB defector and a figure of significant controversy within the U.S. intelligence communi...
Pyotr Semyonovich Popov
Pyotr Semyonovich Popov (July 1923 - 1960) was a major in the Soviet military intelligence apparatus (GRU). He was the first GRU officer to offer his services to the Central Intelligence Agency after ...
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...
Kim Philby
Harold Adrian Russell "Kim" Philby (1 January 1912 – 11 May 1988) was a high-ranking member of British intelligence who worked as a double agent before defecting to the Soviet Union in 1963. He s...
Kim Philby - 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
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
Robert Hanssen
Robert Philip Hanssen (born April 18, 1944) is a former US Federal Bureau of Investigation (FBI) agent who spied for Soviet and Russian intelligence services against the United States for 22 years fro...
Robert Hanssen - Wikipedia
Edward Lee Howard
Edward Lee Victor Howard (27 October 1951 – 12 July 2002) was a CIA case officer who defected to the Soviet Union.
Howard served as a Peace Corps volunteer in Bucaramanga, Colombia. There he met M...
Edward Lee Howard - Wikipedia
Martin and Mitchell Defection
The Martin and Mitchell Defection occurred in September 1960 when two U.S. National Security Agency (NSA) cryptologists, William Hamilton Martin and Bernon F. Mitchell, defected to the Soviet Union. ...
William Kampiles
William Peter Kampiles (born 1955) was a Central Intelligence Agency employee during the Cold War.
Bored with his low-ranking status as a CIA clerk, he stole a top-secret KH-11 spy satellite manua...
David Henry Barnett
David Henry Barnett was a CIA officer who was convicted of espionage for the Soviet Union in 1980, becoming only the second CIA officer to be convicted after Edwin Moore II, a retired CIA employee who...
Harold Wilson conspiracy theories
Since the mid-1970s, a variety of conspiracy theories have emerged centring on British Labour Prime Minister Harold Wilson who served as the Prime Minister of the United Kingdom from 1964 to 1970 and ...
Harold Wilson conspiracy theories - Wikipedia
Abwehr
The Abwehr was a German military intelligence (information gathering) organization which existed from 1920 to 1945. Despite the fact the Treaty of Versailles prohibited the establishment of a German i...
Abwehr - Wikipedia
20 July plot
The 20 July plot refers to the attempt to assassinate Adolf Hitler, Führer of the Third Reich, inside his Wolf's Lair field headquarters near Rastenburg, East Prussia, on 20 July 1944. The primary pur...
20 July plot - Wikipedia
Clockwork Orange (plot)
Clockwork Orange is the name of the secret British security services project which was alleged to have involved a right-wing smear campaign against British politicians from 1974 to 1975. The black pro...
Clockwork Orange (plot) - Wikipedia