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, …

In collaboration with the National Counterintelligence and Security Center, the FBI released a short film to educate anyone with a trade secret about how they can protect it.

However, cleared contractors should be aware that there are potential counterintelligence (CI) vulnerabilities and threats. While most visitors are here for legitimate purposes, the sheer volume of …

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

Aug 9, 2025 · Counterintelligence involves information gathering and activities conducted to protect against espionage, sabotage, and other intelligence operations carried out by foreign powers, …

Mar 23, 2018 · During those years, Angleton accrued a substantial amount of resources and influence for counterintelligence inside CIA, built good working-level relations with the FBI, and cultivated …

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 …

counterintelligence, in government operations, the information and activity related to protecting a nation’s own information and the secrecy of its intelligence operations.

Counterintelligence plays a critical role in national security and the protection of sensitive information. It focuses on preventing espionage and thwarting the activities of foreign intelligence services.

The Counterintelligence Division (CD) is a division of the National Security Branch of the Federal Bureau of Investigation. The division protects the United States against foreign intelligence operations and …