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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 and Espionage — FBI

    3 days ago · 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 & Insider Threat

    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 …

  5. Counterintelligence - DNI

    These resources provide valuable insights and best practices for implementing effective counterintelligence measures in both industry and academia.

  6. 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 …

  7. Counterintelligence at CIA: A Brief History - The World Factbook

    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 …

  8. 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 …

  9. COUNTERINTELLIGENCE IN THE 21ST CENTURY: THE NEED FOR …

    Mar 17, 2021 · Counterintelligence (CI) is a dynamic and ever-changing field, art, and science. In recent times, significant societal and technological changes have forced the CI field and its …

  10. United States Army Counterintelligence Command - Wikipedia

    United States Army Counterintelligence Command (ACIC) is the component of United States Army's Military Intelligence Corps that directs counterintelligence (CI) activities to detect, …