About 152,000 results
Open links in new tab
  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. 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.

  7. Counterintelligence Investigations - United States Department of State

    The Diplomatic Security Service (DSS) runs a robust counterintelligence program designed to deter, detect, and neutralize the efforts of foreign intelligence services targeting State Department …

  8. 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 cultivated …

  9. Counterintelligence Strategies: Safeguarding National Security …

    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.

  10. Home - Counterintelligence - LibGuides at Naval War College

    May 1, 2017 · Counterintelligence can be described as activities designed to prevent or thwart spying, intelligence gathering, and sabotage by an enemy or other foreign entity.