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counterintelligence

[ koun-ter-in-tel-i-juhns ]

noun

  1. the activity of an intelligence service employed in thwarting the efforts of an enemy's intelligence agents to gather information or commit sabotage. : CI
  2. an organization engaged in counterintelligence. : CI


counterintelligence

/ ˌ첹ʊԳəɪˈɛɪəԲ /

noun

  1. activities designed to frustrate enemy espionage
  2. intelligence collected about enemy espionage
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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yvlog History and Origins

Origin of counterintelligence1

First recorded in 1935–40; counter- + intelligence
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Example Sentences

Examples have not been reviewed.

Alternatively, O’Neill explains that secret government counterintelligence programs at the time were intent on discrediting left-wing political movements such as the Black Panthers.

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The sticks are kidnapping and torture of those suspected of disloyalty by Venezuelan and Cuban counterintelligence agents.

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Frank Figliuzzi, a former assistant director for counterintelligence at the FBI, reiterated in an X post what the agency said in its statement.

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The review was carried out in 2020 and 2021 by a small group within the bureau’s counterintelligence division, with the findings then passed along to field offices, which handle informants.

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Interior Minister Nancy Faeser said the arrests of the three suspects in Germany were a "great success for our counterintelligence".

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