What British intelligence officer worked as a double agent for the Soviet Union and was recruited by Arnold Deutsch?
Kim Philby Harold Adrian Russell "Kim" Philby (1 January 1912 – 11 May 1988) was a high-ranking member of British intelligence who worked as a double agent before defecting to the Soviet Union in 1963. He served as both an NKVD and KGB operative.
MI1 MI1 or British "Military Intelligence, Section 1" was a department of the British Directorate of Military Intelligence, part of the War Office. It was set up during World War I. It contained "C&C", which was responsible for code breaking.