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

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

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

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

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

That memo is just one revelation in MI5 files about the infamous Cambridge Five spy ring ... A passport photo of Captain Anthony Blunt, taken during WW2 when he was an officer in the Security ...

The newly declassified papers tell how the Queen was left in the dark about the scale of the treachery of Anthony ... Cambridge Five. As a senior MI5 officer during the Second World War, Blunt ...

That memo is just one revelation in MI5 files about the infamous Cambridge Five spy ring, released on Tuesday into ... and how Guy Burgess, Anthony Blunt and the fifth spy, John Cairncross, agreed to ...

That memo is just one revelation in MI5 files about the infamous Cambridge Five spy ring ... and how Guy Burgess, Anthony Blunt and the fifth spy, John Cairncross, agreed to work for Russian ...