Members of the spy ring in the 1930s spilled secrets to the Soviet Union from the heart of the U.K. intelligence establishment.

Top secret MI5 files detailing first-hand accounts of confessions of three of Britain's most notorious double agents ...

Queen Elizabeth II was not officially informed for nearly a decade that Anthony Blunt was a Soviet spy, newly declassified ...

The Queen’s Private Secretary, Sir Martin Charteris, shared her composed reaction in a handwritten letter summarised by the head of the Security Service in a Top Secret memo. That memo is just ...

Queen Elizabeth II wasn’t told details of her long-time art adviser's double life as a Soviet spy because palace officials ...

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

when he was recruited into the notorious Cambridge spy ring. The group, which included Donald Maclean, Guy Burgess, "Kim" Philby and Anthony Blunt, were recruited as Soviet spies while at ...

That memo is just one revelation in MI5 files about the infamous Cambridge Five spy ring, released on Tuesday into the National Archives at Kew. Charteris spoke to the Queen in 1973 because Blunt had ...

That memo is just one revelation in MI5 files about the infamous Cambridge Five spy ring, released on Tuesday into the National Archives at Kew. Charteris spoke to the Queen in 1973 because Blunt ...

Newly-declassified files show notorious double agent refused ‘insane’ order to follow fellow spies Burgess and Maclean to ...