防ぼう諜ちょう

noun

counterintelligence; counterespionage

Refers to activities and measures taken to prevent enemy intelligence operations, such as spying or sabotage.

• 防ぼう諜ちょう活かつ動どうは国こっ家かの安あん全ぜんにとって不ふ可か欠けつだ。

  Counterintelligence activities are essential for national security.

• 彼かれは防ぼう諜ちょうの専せん門もん家かとして知しられている。

  He is known as an expert in counterespionage.