- See also changes related to Counterintelligence, or pages that link to Counterintelligence or to this page or whose text .
- Intelligence cycle management : The continuous process by which intelligence priorities are set, raw information collected, information analyzed, the processed information disseminated, and the next set or priorities set.
- Intelligence cycle security : The process of balancing the protection of sources versus the needs of users, and protecting information from unauthorized users
- Canadian Security Intelligence Service : The civilian intelligence analysis and counterintelligence organization of Canada
- Director of National Intelligence : The professional head of the United States Intelligence Community, reporting to the President, with Dennis Blair being replaced by James Clapper
- London Controlling Staff : Add brief definition or description
- Federal Bureau of Investigation : The principal U.S. Federal police agency, part of the U.S. Department of Justice and the United States intelligence community, who has arrest authority, and is the primary authority for a variety of domestic crimes, civilian counterespionage within the United States, and organized crime
- Reich Security Main Administration : Add brief definition or description
- Organs of State Security : A generic term for Soviet intelligence and internal security organizations, from the Cheka to the KGB; traditionally a third of the power balance among the Communist Party of the Soviet Union and the Red Army; term continues in Russian usage with the FSB
- Committee for State Security : Usually known as the KGB, one of Organs of State Security of the Soviet Union, with extensive responsibilities in intelligence (information gathering), border security, counterintelligence and suppression of dissent; split up in the Russian Federation with counterintelligence in the FSB and foreign intelligence in the SVR
- Office of Strategic Services : The United States' first unified agency for clandestine intelligence collection, all-source intelligence analysis and covert action
- Security Service : British domestic counterintelligence service, without police powers
- Special Branch : Government police department responsible for national security in Britain and Commonwealth countries.
- Security organization of Saddam Hussein : The multiple security organizations that protected the person, government, and sensitive projects of Saddam Hussein, also cross-checking one another
- Censorship : The act of preventing specifically defined ideals, concepts, images, or messages from being available to a given population.
- Concealment : Protection against observation or detection by intelligence, surveillance and reconnaissance, or by simple tactical observation
- Counterterrorism : A range of activities that prevent attempted terrorism well before an actual act is close to being executed, including killing or capturing terrorists; complements and can include anti-terrorism, or measures taken to minimize the impact of an attempted or completed act; counterterrorism proper is "enemy centric" rather than counterinsurgency, which is "people-centric"
- Deception : The act of deceiving or misleading, through the intentional concealing or misrepresentation of facts.
- Debriefing : Obtaining information from cooperating people, who are aware of at least some purposes of the conversation or written communication, and do not consider themselves under duress in this type of eduction
- Interrogation : A systematic process of direct questioning, of a person in detention or otherwise under the control of the interrogator, to obtain reliable information to satisfy criminal investigation or human-source intelligence requirements, within the scope of relevant law and policy
- Maskirovka : A very broad Soviet/Russian military theoretical concept, encompassing what the West regards as camouflage, or deception, concealment and counterintelligence, but going to a conscious plan of convincing the opponent to believe what one wants him to believe
- False flag : In a variety of situations ranging from clandestine human-source intelligence to fraud to counterintelligence to false flag interrogation techniques, a manipulative technique where the manipulator leads others to believe he is the representative of a group they either admire or fear, in order to secure a benefit for his own cause, symbolically represented by a national flag
- Financial intelligence : Collecting information on financial transactions (either from the financial institution or by clandestine means) and then analyzing it to determine providers and consumers of money or money equivalents
- Offensive counterintelligence : Active measures, such as running double agents or provocateurs, intended to degrade and deceive the clandestine human-source intelligence capability of a foreign intelligence service
- Operations security : The set of doctrines, procedures, and actions that are intended to prevent an adversary from learning of the existence of planned operations, the conditions that will cause it to be initiated, the way it will be conducted, or how its plan changes during execution.
- Presidential Decision Directive 39 : A 1995 Clinton Administration order on U.S. counterterrorism policy
- Radiofrequency MASINT : Collection and processing of intelligence information derived from unintentional electromagnetic radiation from targets of interest
- U.S. intelligence involvement with World War II war criminals : Choices by U.S. intelligence agencies, after the Second World War, not to seek prosecution of certain war criminals in return for perceived important intelligence information
- U.S. intelligence involvement with World War II Japanese war criminals : Actions by intelligence agencies, primarily in the U.S. Army, where Japanese strongly suspected of war crimes were not prosecuted in exchange for information, such as details of the biological weapons program
- U.S. intelligence involvement with World War II Nazi war criminals : Actions by intelligence agencies, primarily in the U.S. Army, where Nazi strongly suspected of war crimes were not prosecuted in exchange for information, such information on the Soviet Union
- Clandestine human-source intelligence and covert action : Intelligence and military special operations functions that either should be completely secret (i.e., clandestine: the existence of which is not known outside the relevant government circles), or simply cannot be linked to the sponsor (i.e., covert: it is known that sabotage is taking place, but its sponsor is unknown).
- Clandestine human-source intelligence operational techniques : "Tradecraft" of espionage and activities supporting it, such as secret communication, document forgery, etc.
- Clandestine human-source intelligence recruiting : The recruiting of human assets who do not work for a foreign intelligence service, as part of human-source intelligence.
- Clandestine human-source intelligence : clandestine operations by people who secretly collect intelligence, and their support by couriers, forgers, radio operators, and other operational personnel.
- Clandestine operation : Any of a range of activities, intended to affect the behavior of a target nation or non-national actor, where the performing actor takes all practical efforts to ensure that the fact of the activities do not become known to unauthorized personnel. Only a small number of officials of the country or non-state entity performing the operation may be aware of it.
- James Angleton : Add brief definition or description
- Stuart Herrington : Colonel, retired, United States Army intelligence; counterintelligence and interrogation expert; ran major counterespionage; consulted on, and criticized, intelligence interrogation methods at Guantanamo Bay detention camp and in Iraq; testified on matter to Senate Armed Services Committee
- F. W. Winterbotham : Add brief definition or description
- James Bond : Fictional British MI6 agent, created in 1952 by writer Ian Fleming.
- Mr. Calder and Mr. Behrens : Fictional characters in spy stories by the British writer Michael Gilbert.
- Matt Helm : Fictional U.S. government counteragent and assassin in 26 novels by American author Donald Hamilton.
- Criminal investigation : Deciding that a crime has occurred, obtaining evidence about it, and determining who may have committed the crime
- Cryptography controversy : The "crypto wars", political controversies and legal cases involving the use of cryptography.
- De-Ba'athification : Policies and procedures to extirpate influences of the Ba'ath Party ideology, and officials of it, from Iraq after the Iraq War
- Denazification : Policies and procedures for extirpating Nazi influence from German after the Second World War
- Military Intelligence Company (Brigade Combat Team) : As part of the restructuring of the United States Army, a new unit type, within Brigade Combat Team headquarters, which assists the Brigade Intelligence Officer with access to information from higher-level commands and intelligence organizations, analytical tools, etc.; it complements the enhanced field scouts of the Reconnaissance, Surveillance and Target Acquisition (RSTA) Squadron