Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's intelligence program from an opposition's intelligence service. It includes gathering information and conducting activities to prevent espionage, sabotage, assassinations or other intelligence activities conducted by, for, or on behalf of foreign powers, organizations or persons.
SMERSH was an umbrella organization for three independent counter-intelligence agencies in the Red Army formed in late 1942 or even earlier, but officially announced only on 14 April 1943. The name SMERSH was coined by Joseph Stalin. The formal justification for its creation was to subvert the attempts by Nazi German forces to infiltrate the Red Army on the Eastern Front.
There were a succession of Soviet secret police agencies over time. The first secret police after the October Revolution, created by Vladimir Lenin's decree on December 20, 1917, was called "Cheka" (ЧК). Officers were referred to as "chekists", a name that is still informally applied to people under the Federal Security Service of Russia, the KGB's successor in Russia after the dissolution of the Soviet Union.
The Ministry of State Security, abbreviated as MGB, was a ministry of the Soviet Union from 1946 to 1953 which functioned as the country's secret police. The ministry inherited the intelligence and state security responsibilities of the People's Commissariat for Internal Affairs (NKVD) and People's Commissariat for State Security (NKGB). The MGB was led by Viktor Abakumov from 1946 to 1951, then by Semyon Ignatiev until Stalin's death in 1953, upon which it was merged into an enlarged Ministry of Internal Affairs (MVD).
The Internal Military Service, coll. Szefostwo, was an armed military counterintelligence, military police, and military secret police within the structure of Ministry of National Defense or (MON). It served and protected the Polish Armed Forces against western and central MON institutions during the years of 1957-1990 in the Polish People's Republic or PRL.
The counter-terrorism page primarily deals with special police or military organizations that carry out arrest or direct combat with terrorists. This page deals with the other aspects of counter-terrorism:
The core of the security and intelligence system of the Republic of Croatia consists of two security and intelligence agencies:
The Security Intelligence Agency is a national security and intelligence agency of Serbia. The agency is responsible for collecting, reporting and disseminating intelligence, and conducting counterintelligence in the interest of Serbia's national security.
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, OGPU, and NKVD. Attached to the Council of Ministers, it was the chief government agency of "union-republican jurisdiction", carrying out internal security, foreign intelligence, counter-intelligence and secret police functions. Similar agencies operated in each of the republics of the Soviet Union aside from the Russian SFSR, where the KGB was headquartered, with many associated ministries, state committees and state commissions.
The Security and Intelligence Agency is the Croatian security and intelligence service founded in 2006 upon the passing of the Security and Intelligence System of the Republic of Croatia Act and by combining the former Counterintelligence Agency (POA), and the Intelligence Agency (OA) which both ceased to operate.
The Military Security and Intelligence Agency is the security and intelligence service of the Croatian Armed Forces. Established with the passing of the 2006Act on the Security Intelligence System of the Republic of Croatia, the Director of the VSOA is appointed or dismissed by a joint decision made by the President of Croatia and the Prime Minister of Croatia.
The Military Security Agency is a Serbian military security and counterintelligence agency of Serbia, organizational unit of the Ministry of Defence.
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 operations and espionage. It accomplishes its mission of hunting spies and preventing espionage through the use of investigation and interaction with local law enforcement and other members of the United States Intelligence Community. In the wake of the September 11, 2001 attacks, the division's funding and manpower have significantly increased.
The People's Commissariat for State Security or NKGB, was the name of the Soviet secret police, intelligence and counter-intelligence force that existed from 3 February 1941 to 20 July 1941, and again from 1943 to 1946, before being renamed the Ministry for State Security (MGB).
The People's Commissariat for Internal Affairs, abbreviated as NKVD, was the interior ministry and secret police of the Soviet Union from 1934 to 1946. The agency was formed to succeed the Joint State Political Directorate (OGPU) secret police organization, and thus had a monopoly on intelligence and state security functions. The NKVD is known for carrying out political repression and the Great Purge under Joseph Stalin, as well as counterintelligence and other operations on the Eastern Front of World War II. The head of the NKVD was Genrikh Yagoda from 1934 to 1936, Nikolai Yezhov from 1936 to 1938, Lavrentiy Beria from 1938 to 1946, and Sergei Kruglov in 1946.
