Philby, Kim (Harold Adrian Russell Philby), 1912–88, British double agent; son of Harry St. John Bridger Philby, better known as Kim Philby, worked for many years as a Soviet spy within the British intelligence service. He came under suspicion when two of his associates, Donald Maclean and Guy Burgess, defected to the USSR in 1951, but his activities were not fully exposed until he himself defected in 1963. The case later received wide publicity.
See G. Borovik, The Philby Files (1995); A. C. Brown, Treason in the Blood (1995).
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