Kim Philby (1 January 1912 – 11 May 1988), a British intelligence officer and a double agent for the Soviet Union. In 1963 he was revealed to be a member of the Cambridge Five, a spy ring that passed information to the Soviet Union during World War II and in the early stages of the Cold War. He died on 11 May 1988 at the age of 76 in Moscow, Russian SFSR, Soviet Union.