counterintelligence

[ koun-ter-in-tel-i-juh ns ]

/ ˌkaʊn tər ɪnˈtɛl ɪ dʒəns /

the activity of an intelligence service employed in thwarting the efforts of an enemy's intelligence agents to gather information or commit sabotage.

an organization engaged in counterintelligence.

Origin of counterintelligence

First recorded in 1935–40; counter- + intelligence

Rõivas called the kidnapping of a counterintelligence official a serious crime “unacceptable to any Estonian.”

Russia Steps Up Pressure on the Baltics |Will Cathcart |September 5, 2014 |DAILY BEAST
“I have been a counterintelligence officer,” Alasania told The Daily Beast.

Georgian Opposition Says the Country's Democracy Is Slipping |Eli Lake |December 4, 2011 |DAILY BEAST
Far from it, said David G. Major, the retired FBI counterintelligence agent.

Inside the FBI's Bid to Flip a Russian Spy |Philip Shenon |July 12, 2010 |DAILY BEAST
Few of the people in MI6 or MI5, the counterintelligence service, would divulge anything at all.

The Charmed Life of a Traitor |Harold Evans |November 6, 2009 |DAILY BEAST

The job of a counterintelligence officer and a field agent working for the CIA or the MI-6, their job is not to tell the truth.

The Twisted Mind Behind Julia |Kara Cutruzzula |March 21, 2009 |DAILY BEAST

counterintelligence

/ (ˌkaʊntərɪnˈtɛlɪdʒəns) /

activities designed to frustrate enemy espionage

intelligence collected about enemy espionage