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

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

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

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

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 ...

Despite advances in electronic surveillance, security service MI5 still relies on human ‘watchers’. Government documents ...

A World War II-era tailing guide is among declassified records shedding light on spy game in MI5: Official Secrets, at the ...

Newly released MI5 files from the National Archives reveal that British intelligence monitored potential connections between French government interests and nationalist movements in Scotland and Wales ...

These instructions, part of a declassified training booklet for rookie operatives, are now on display at the National Archives in Kew, west London, as part of a new exhibition on MI5’s wartime ...

The guidance will feature in a new exhibition at the National Archives focusing on the work of the Security Service.

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

The guidance is contained in a booklet for recruits during World War Two, which will go on display at the National Archives in Kew, west London Rookie wartime MI5 "watchers" were advised they ...