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

The newly-declassified documents include details about some of the UK's most notorious spies.

The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday by ...

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

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 ...

MI5 reveals confessions of three members of infamous Cambridge Five spy ring as tranche of documents released into National ...

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

Recently released MI5 files reveal confessions from Britain's notorious double agents, including Kim Philby and Anthony Blunt, who spied for the Soviets. These declassified documents, made public by ...

That was the advice issued to rookie MI5 “watchers” whose job it was ... focusing on the work of M15 due to open at the National Archives in Kew, west London, in the spring.

A newly declassified document is on display at the National Archives. It reveals the advice given to new MI5 recruits during ...

MI5 feared film star Dirk Bogarde could be the target of a KGB gay "entrapment" attempt after it emerged he was on a list of ...