Undisclosed MI5 intelligence was not deliberately withheld from a £40 million (€46.6 million) investigation into the activities of the British army’s top spy in Northern Ireland during the ...

An MI5 review into the failure by the spy agency to disclose information to the team investigating the British agent Stakeknife will be made public on Thursday. It emerged last year that MI5 had ...

LONDON, April 2 (Reuters) - Britain's spy agency MI5 is revealing some secrets ... George Smiley works for overseas intelligence agency MI6, dubbed "The Circus" by le Carré, while grumpy Jackson ...

MI5 and MI6, the secret intelligence service, have a long history of handling rogue agents and rogue officers. Anthony Blunt, Kim Philby, David Shayler and Northern Ireland double agent ...

MI5 has issued an "unreserved apology" after a court was misled in a bid to stop a suspected Security Service informant from being identified. The High Court was “misled” by false information ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. MI5 has admitted it provided “incorrect information” to the English courts in a case concerning an ...

British spy agency MI5 has apologized to the BBC. The unprecedented situation arose after MI5 was forced to say sorry to three courts for lying about a neo-Nazi agent who attacked his girlfriend ...

Gary Oldman, who stars as grumpy yet gifted spy boss Jackson Lamb in Apple TV+ hit “Slow Horses,” has been recruited by the real MI5 – to narrate a Christmas poem. In collaboration with the ...

MI5 boss Ken McCallum also said that Russian intelligence was seeking to cause "mayhem" in Britain because of its support for Ukraine and that his agency had investigated growing numbers of Iran ...

Russia is trying to create "mayhem" on the UK's streets, the head of the MI5 has warned. In a wide-ranging speech, the organisation's director general Ken McCallum said Britain faces an increased ...

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 United ...