counterintelligence

American  

[koun-ter-in-tel-i-juhns] / ˌkaʊn tər ɪnˈtɛl ɪ dʒəns /

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

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counterintelligence British  

/ ˌkaʊntərɪnˈtɛlɪdʒəns /

noun

1. activities designed to frustrate enemy espionage

2. intelligence collected about enemy espionage

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Etymology

Origin of counterintelligence

First recorded in 1935–40; counter- + intelligence

Example Sentences

It calls for a mandatory registration system for foreign agents -- such as individuals and corporations lobbying within Japan on behalf of other governments -- as part of counterintelligence measures.

From Barron's

"We support the use of AI for lawful foreign intelligence and counterintelligence missions," Amodei said.

From BBC

The verdict marked the Justice Department’s first conviction on AI-related economic espionage charges, according to a statement from Roman Rozhavsky, assistant director of the FBI’s counterintelligence and espionage division.

From Los Angeles Times

Rodriguez also replaced the head of the presidential guard, who leads the feared counterintelligence unit, and named a new economic czar.

From Barron's

He married his first wife, fellow CIA agent Nancy Segebarth, in 1969, before being sent to Turkey as a counterintelligence officer to recruit foreign agents.

From BBC