A closer look at recently declassified MI5 files on the intelligence failure surrounding the five "Cambrdige spies" ...

Cairncross, the last of the spy ring to be publicly identified in the 1990s, admitted in a 1964 interview in the US that he too had been recruited by Russian intelligence. “Cairncross has ...

The Soviets recruited Philby, Blunt and Cairncross, as well as Donald Maclean ... of “tremendous loyalty” to Britain’s MI6 spy agency, where he served as a high-ranking officer early in ...

Five Cambridge University graduates served as double agents, leaking highly classified information to the Soviet Union ...

who authored a biography of Cambridge Five spy John Cairncross, told NBC News. “To have informed Her Majesty or anyone else for that matter would have been potentially defamatory; it would also ...

"She took it all very calmly and without surprise," it said. Mr Cairncross, the last of the spy ring to be publicly identified in the 1990s, admitted in a 1964 interview in the US that he too had ...

Amid fears of arrest and that their spy ring was about to be broken up ... The trio, together with Kim Philby and John Cairncross, had all been recruited by the Russians while or after studying ...

The files confirm that Philby recruited Donald Maclean in 1934, and how Guy Burgess, Anthony Blunt and the fifth spy, John Cairncross, agreed to work for Russian intelligence soon afterwards.