Dame Stella Rimington, the former first female director general of MI5 and reputedly the inspiration behind the female ...

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 "follow that cab" when pursuing a suspect, newly declassified ...

Newly released MI5 files reveal that, for nearly 10 years, the late monarch didn’t know that royal household member Anthony Blunt was actually a Soviet double agent. According to the BBC ...

Titled "A Christmas Story from MI5," the video shows various agents at their computers at the spy agency's London headquarters Thames House (not Regent's Park, as depicted in the TV series ...

Confessions of double agents and tips for new spies have been released as part of a tranche of recently-declassified documents from MI5. The documents are part of a new exhibition on display at ...

The security service MI5 has handled large amounts of personal data in an "undoubtedly unlawful" way, a watchdog has said. The Investigatory Powers Commissioner said information gathered under ...

MI5’s director general has said every terrorist attack is “sickening” during a speech in Washington celebrating the outgoing FBI director. Sir Ken McCallum, who was knighted in the latest ...

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 ...

In one of the newly released files, an MI5 officer notes that Blunt said he ... The Cambridge spies have inspired myriad books, plays movies and TV shows, including the 2023 series “ A Spy ...