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

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

Former aide of late Queen Elizabeth II, Anthony Blunt, worked as spy for the Russia for almost 10 years without the queen ...

Queen Elizabeth II was not told officially for nearly a decade that one of her most senior courtiers had admitted he was a ...

(PA via AP, File) Harold “Kim” Philby, one of the Cambridge Ring of Soviet Spies, Aug. 11, 1955. (PA via AP, File) Queen Elizabeth II wasn’t told details of her long-time art adviser’s double life as ...

They shed new light on a spy ring linked to Cambridge University in the 1930s ... was under suspicion for years before he ...

Documents newly declassified by MI5, Britain's internal intelligence agency, show the late Queen Elizabeth II was not ...

The newly-declassified documents include details about some of the UK's most notorious spies.

DURING the Blitz, Anthony Blunt was the assistant to the chief of counter-intelligence at MI5. He was recruited as a Soviet agent at Cambridge University in the 1930s before becoming an art historian.

Film star Dirk Bogarde was warned by MI5 that he could be the target of a gay “entrapment” attempt by the KGB, according to newly-declassified intelligence files. Documents released to the ...