Monica Elfriede Witt is a former U.S. Air Force Intelligence specialist who was charged with espionage on behalf of Iran. She was accused of espionage and the conspiracy to commit espionage. On February 8, 2019 a grand jury indicted Witt, charging her with Conspiracy to Deliver National Defense Information to Representatives of a Foreign Government and Delivering National Defense Information to Representatives of a Foreign Government, specifically the Government of Iran. An arrest warrant was issued for her arrest. Witt is to believed to reside in Iran, and is considered a fugitive.
(From: https://www.fbi.gov/wanted/counterintelligence/monica-elfriede-witt)
Report: Former U.S. Air Force Intelligence Specialist Monica Witt has been indicted for espionage
Report: Monica Witt defected to Iran in 2013 and is accused of assisting Iranian intelligence in targeting her former fellow agents in the U.S. intelligence community