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

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

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 ...

Newly declassified files reveal the late Queen's very unexpected reaction to the art historian's shocking secret.

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

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

Britain’s National Archives on Tuesdayreleased declassified MI5 domestic counterintelligence agency files containing the ...

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