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, …

Listen to this episode of Inside the FBI to learn about counterintelligence, what it means to the FBI, and the types of hostile foreign intelligence activity we work to combat.

Jul 29, 2025 · What is counterintelligence? Learn how it combats espionage, protects national interests, and is integrated into intelligence and security degree programs.

Jan 28, 2026 · Counterintelligence is a specialized field dedicated to safeguarding national security from various threats. It involves activities designed to protect sensitive information, critical infrastructure, …

Mar 23, 2018 · On December 20, 1954, the Counterintelligence Staff was created with James Angleton as its chief, a post he would retain until his abrupt dismissal two decades later.

Counterintelligence (CI) conducts activities to identify, assess, and neutralize foreign intelligence and cyber threats to DCSA, the Trusted Workforce, the cleared National Industrial Base, and its …

Below are links to the press release and the National Counterintelligence Strategy.

Mar 18, 2026 · Former FBI Agent Derek Pieper explains counterintelligence and counterespionage investigations.

After review of these training products, additional training is available on this webpage to expand your knowledge and skills. The CI Awareness Program helps DOD and Industry Security be aware of …

The meaning of COUNTERINTELLIGENCE is organized activity of an intelligence service designed to block an enemy's sources of information, to deceive the enemy, to prevent sabotage, and to gather …