Counterintelligence is an activity aimed at protecting an agency's intelligence program from an opposition's intelligence service.[1] 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.

Civilian photo technicians (in back of jeep) working for Counter Intelligence Corps are accounted for at a checkpoint in Potsdam, Germany, July 14, 1945

Many countries will have multiple organisations focusing on a different aspect of counterintelligence, such as domestic, international, and counter-terrorism. Some states will formalise it as part of the police structure, such as the United States' Federal Bureau of Investigation. Others will establish independent bodies, such as the United Kingdom's MI5.

Share this article:

This article uses material from the Wikipedia article Counterintelligence, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.