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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

    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? Key Concepts Explained

    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 at CIA: A Brief History

    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 …

  5. COUNTERINTELLIGENCE

    CI officers detect, identify, assess, exploit, counter and neutralize damaging efforts by foreign entities. In an ever-changing, dynamic global threat environment, CI officers develop and execute strategies that …

  6. 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 its …

  7. 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, …

  8. Counterintelligence - Intelligence Studies - LibGuides at Naval War …

    Jan 27, 2026 · This research guide contains information-- both current and historical--on the topic of intelligence. Areas covered include intelligence collection, the intelligence cycle, and also topics such …

  9. 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 …

  10. 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 component …