Anthony Blunt, who worked at Buckingham Palace as Surveyor of the Queen’s Pictures, was secretly a Soviet spy during WWII.

Rookie wartime MI5 "watchers" were advised they needed to be prepared to offer a big tip if they had to tell a taxi driver to ...

Jan. 14 (UPI) --Documents newly declassified by MI5, Britain's internal intelligence agency, show the late Queen Elizabeth II ...

Some MI5 material relating to its involvement with a teenager who was charged with terrorism before taking her own life is ...

Avoid facial disguises, carry loose change and be ready to make split-second decisions: just some of the advice Britain’s ...

The manual gives instructions on preferred appearances, disguises and how to follow targets – but warns against fake ...

Confessions of double agents and tips for new spies have been released as part of a tranche of recently-declassified ...

Avoid false beards, carry plenty of spare change and know what to do when you need to tell a taxi driver "follow that cab!" - ...

Queen Elizabeth II was not officially informed for almost a decade that one of her most senior courtiers had confessed to ...

An English career criminal has claimed he was recruited to murder five people on behalf of MI5 in the early days of the Troubles. The startling hit-man admission has been made in a sworn affidavit ...

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

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