Trove of newly declassified files detail investigations into some of the country’s most notorious double agents, the ‘Ring of ...

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

As new documents reveal fascinating new details about the infamous MI6 double agent Kim Philby and his betrayals, Mark Hollingsworth reflects on how despite the evidence, he and fellow Soviet agent An ...

If Kim Philby was in any doubt about the nature of the meeting he was about to have with an MI5 interrogator in December 1951, it was rapidly dispelled when the most damaging Soviet double-agent of ...

Kim Philby was a high-flying MI6 officer - who had been tipped as a future chief - but was also spying for Russia after being ...

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

For decades, one question has lingered – when was the Queen told about Blunt’s betrayal? New evidence offers some answers ...

Cambridge spy Kim Philby had no regrets about his treachery, his interrogators said after he was unmasked. The double agent’s confession has been published in full for the first time in newly ...

Two of the Cambridge spies, Donald Maclean and Guy Burgess, fled to Russia in 1951. A third, Kim Philby, continued to work for foreign intelligence agency MI6 despite falling under suspicion. As ...

Will we ever tire of the Cambridge spies? Kim Philby, Anthony Blunt, Burgess and Maclean – and to a lesser extent John ...

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