She was credited as the inspiration for Judi Dench’s M in James Bond films and was the first publicly named chief of Britain’s domestic intelligence service.

Iran’s Islamic Revolutionary Guards Corps (IRGC) should be banned as a terrorist organisation, nearly three quarters of ...

The former head of the British Intelligence service and author Stella Rimington was the first female (and publicly-named) MI5 ...

MI5 is facing fresh scrutiny in the case of a violent neo-Nazi agent after a High Court judge said he had "no confidence" in the Security Service's account of how a senior officer gave false evidence.

Declassified records describe Hans Wilsdorf as “most objectionable” and allege he may have used his position to spread ...

MI5 Director General Ken McCallum said his agents and police have tackled 20 “potentially lethal” plots backed by Iran since 2022 and warned that it could expand its targets in the U.K. if ...

Witness B - MI5's third-in-command - said the internal investigation established that Officer 2 had "updated colleagues within MI5" about the conversations with me, but that "there was no evidence ...

Rolex said it was well aware of the file in the National Archives and had constituted a team of historians for further research.

The head of MI5 has issued an unprecedented warning that terrorists are seeking to recruit children over the summer holidays after record arrests of teenagers.

For 10 years MI5 have been knowingly breaking the rules and failing to report it, and the government has failed to investigate clear red flags," says Liberty lawyer Megan Goulding.

From I-35 to MI5: A Texan’s Journey Into Espionage Ava Glass turned her time writing counterterrorism communiqués into a series of hyperrealistic spy novels. Her latest, The Trap, is out this week.

When MI5 begins to get involved in Ireland in the early 1970s — at that point they knew less about Belfast than they did about Nairobi — well, I haven’t come across a single file that ...