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Countersurveillance refers to measures that are usually undertaken by the public to prevent surveillance, [1] including covert surveillance. Countersurveillance may include electronic methods such as technical surveillance counter-measures, which is the process of detecting surveillance devices.
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 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).
Surveillance is the monitoring of behavior, ... Espionage is by definition covert and typically illegal according to the rules of the observed party, ...
One is the Soviet ability to mesh overt and covert influence activities through centralized coordination of party, government, and ostensibly private organizations dealing with foreigners. Despite interagency coordination mechanisms, the United States is too pluralistic to achieve full coordination between all the overt and covert means of ...
As the name suggests, human intelligence is mostly collected by people and is commonly provided via espionage or some other form of covert surveillance. However, there are also overt methods of collection, such as via interrogation of subjects or simply through interviews.
A cover in foreign, military or police human intelligence or counterintelligence is the ostensible identity and/or role or position in an infiltrated organization assumed by a covert agent during a covert operation.
A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone. The use of bugs, called bugging, or wiretapping is a common technique in surveillance , espionage and police investigations.
The FBI has used covert operations against domestic political groups since its inception; however, covert operations under the official COINTELPRO label took place between 1956 and 1971. However, the official chronology of the program is the subject of the debate.