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

Blunt was recruited by MI5 during World War II but the secret services became suspicious of him after Guy Burgess and Donald ...

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

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

The double agent’s confession has been published in full for the first time in newly declassified MI5 files. After being recruited at Cambridge University in 1934, Philby joined MI6 – which ...

MI5 documents reveal her private secretary ‘saw no advantage in telling her’ about treachery of Buckingham Palace art expert ...

MI5 reveals confessions of three members of infamous Cambridge Five spy ring as tranche of documents released into National ...

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

Queen Elizabeth II wasn’t told details of her long-time art adviser's double life as a Soviet spy because palace officials ...

Historian Christopher Andrew says in the official history of MI5 that the queen had previously ... They shed new light on a spy ring linked to Cambridge University in the 1930s, whose members ...