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

The exposing of five University of Cambridge graduates as Soviet spies remains one of the most fascinating stories from the Cold War. The members of the so-called ‘Cambridge Five’ spy-ring were all ...

The Cambridge Five consisted of Harold ‘Kim’ Philby, Guy Burgess, Donald Maclean, Anthony Blunt and John Cairncross, who ...

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

A closer look at recently declassified MI5 files on the intelligence failure surrounding the five "Cambrdige spies" ...

Britain’s National Archives on Tuesdayreleased declassified MI5 domestic counterintelligence agency files containing the confessions of notorious double agents known as the “Cambridge Five” who spied ...

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

The British secret service has declassified new documents about the famous spy who ended up fleeing to Moscow, where he died alone and drunk 25 years later ...

Newly declassified British documents show that Queen Elizabeth II wasn’t told details of her long-time art adviser's double life as a Soviet spy because palace officials didn’t want to add to her ...

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

The Cambridge Five consisted of Harold ‘Kim’ Philby, Guy Burgess, Donald Maclean, Anthony Blunt and John Cairncross, who together made up the most infamous spy ring of the 20th century.

Among the papers is an incomplete six-page confession from 1963 of Philby, seen as the Cambridge Five's ringleader and ... papers and equipment used by spies in the agency's 115-year history.