Inside the Universes

'counterintelligence'

[counterintelligence.n.01] as in: 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

Origins

					counterintelligence (English)
├── counter- (English)
└── intelligence (English)
    └── intelligence (Old French (842-ca. 1400))