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

The National Archives has released declassified MI5 files, including the confession of a civil servant who worked in the ...

Newly declassified British documents show that Queen Elizabeth II wasn’t told details of her long-time art adviser's double ...

As new documents reveal fascinating new details about the infamous MI6 double agent Kim Philby and his betrayals, Mark ...

For decades, one question has lingered – when was the Queen told about Blunt’s betrayal? New evidence offers some answers ...

The British secret service has declassified new documents about the famous spy who ended up fleeing to Moscow, where he died ...

From traitor’s confession to Queen’s involvement - Trove of newly declassified files detail investigations into some of ...

Helenus Milmo, a barrister and wartime MI5 officer, was tasked with trying to wring the truth from Kim Philby. Some seven ...

Queen Elizabeth II was not told about her long-time art adviser's double life as a Soviet spy, newly declassified documents ...

MI5’s top interrogator was baffled by Kim Philby, admitting he could not determine whether he was a Soviet spy, according to ...

Newly declassified files show the moment the notorious Cambridge double agent finally confessed to his treachery.

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