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

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

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

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 ...

New archival material released in the UK have revealed some unexpected details about one of the biggest spy scandals ...

While shows like The Americans and Slow Horses are based on fictional characters, the gripping MGM+ miniseries A Spy Among ...

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

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

Top secret MI5 files detailing first-hand accounts of confessions of three of Britain's most notorious double agents including Kim Philby ... countless spy films and novels. Among the papers is an ...

Recently declassified MI5 files have shed light on one of the most infamous chapters in Cold War espionage, revealing ...