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

The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday by ...

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

Documents reveal how the monarch was not told the full story about Anthony Blunt, a Soviet mole inside MI5 and member of the ...

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

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