counterintelligence
noun
coun·ter·in·tel·li·gence
ˌkau̇n-tər-in-ˈte-lə-jən(t)s 
: 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 political and military information
Examples of counterintelligence in a Sentence
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And there’s a kicker in Peter’s account, as there almost always is in the mirrored world of counterintelligence.
—
Neal B. Freeman, National Review, 29 May 2024
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.
—Mattathias Schwartz, New York Times, 20 May 2024
See all Example Sentences for counterintelligence 
Neal B. Freeman, National Review, 29 May 2024
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.
—Mattathias Schwartz, New York Times, 20 May 2024
See all Example Sentences for counterintelligence
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“Counterintelligence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counterintelligence. Accessed 1 Jun. 2024.
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counterintelligence
noun
coun·ter·in·tel·li·gence
ˌkau̇nt-ə-rin-ˈtel-ə-jən(t)s
: activities of an intelligence service meant to hide the truth from an enemy or to prevent the enemy from learning secret information
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