Trove of newly declassified files detail investigations into some of the country’s most notorious double agents, the ‘Ring of Five’, who passed information to the Soviets for three decades ...

Helenus Milmo, a barrister and wartime MI5 officer, was tasked with trying to wring the truth from Kim Philby. Some seven ...

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

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 ...

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Kim Philby was the quintessential spy, a man who charmed and betrayed in equal measure. To his colleagues in MI6, he was the consummate professional, rising swiftly through the ranks of Britain ...

The documents reveal fascinating new details about the infamous MI6 double agent Kim Philby and his betrayals. Recommended MI5 ‘missed chance to expose Soviet spy Kim Philby decade sooner’ A ...

However, the release of MI5’s files this week, detailing the confessions of Kim Philby and his fellow members of the Cambridge Five, forces us to confront an unsettling reality: espionage is a world ...

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 ...