The 'highly unusual' investigation, believed to have began in the mid-to-late 1990s before concluding in 2015, came following ...

SPY chiefs probed a suspected “Russian double agent” at the heart of MI6 in a 20-year global operation, it has been revealed.

The MI5 officer looking into the Mitrokhin lead then discovered another problem – Norwood was still alive and living in a semi-detached home in London’s suburbs.

Blaise Metreweli’s grandfather, Constantine Dobrowolski, defected from the Red Army to become Nazi Germany’s chief informant ...

Interestingly, it was another woman – MI5’s first female officer, Jane Sissmore – who first tried to out Kim as a Soviet mole, though following a row with the acting director general, she ...

Apart from the odd tiresome comment about being a “diversity hire” — the first female head of MI6, Blaise Metreweli, has had a smooth landing as the new “C” — Chief, replacing the affable Sir Richard ...

But he had a secret. Long before his career began, Philby had already pledged loyalty, not to Britain, but to the Soviet Union. Philby was recruited in 1934 by a Soviet agent known as "Otto." ...

Pressed over previous warnings by the head of MI5 over the “epic scale” of Chinese espionage ... “It’s hard to imagine that if in 1980 the former Soviet Union had asked for a prime site for a new mega ...

James Bond remains the standard spy on the big screen, but there are some formidable TV spies that may be even better than ...

The most infamous Soviet-era fighters are arguably the Sukhoi Su-27 and the Mikoyan-Gurevich MiG-29 and MiG-25.

Robert F. Kennedy met with the CIA after a trip to the Soviet Union, newly declassified files show The CIA released 1,500 pages of previously classified documents relating to the assassination of ...