Etymology
Advertisement

counterintelligence (n.)

also counter-intelligence, "act of preventing an enemy from obtaining secret information," 1940, from counter- + intelligence.

updated on April 17, 2018

Advertisement
Advertisement
Definitions of counterintelligence from WordNet

counterintelligence (n.)
intelligence activities concerned with identifying and counteracting the threat to security posed by hostile intelligence organizations or by individuals engaged in espionage or sabotage or subversion or terrorism;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.