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  1. Counterintelligence - Wikipedia

    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, …

  2. Counterintelligence — FBI

    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.

  3. What Is Counterintelligence? - American Public University

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

  4. COUNTERINTELLIGENCE Definition & Meaning - Merriam-Webster

    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 …

  5. What Is Counterintelligence and Why Does It Matter?

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

  6. The counterintelligence organization has little or no control over the vast amount of information available to foreign countries through legitimate overt sources.

  7. Counterintelligence | government operation | Britannica

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

  8. A Guide to Counterintelligence - Grey Dynamics

    Counterintelligence (CI) is an essential discipline and practice within the intelligence community and national security spheres.

  9. What is counterintelligence? | Definition from TechTarget

    Oct 31, 2025 · Counterintelligence (CI) is the information gathered and actions taken to identify and protect against an adversary's knowledge collection activities or attempts to cause harm through …

  10. Counterintelligence Strategies: Safeguarding National ...

    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.