The High Court has ordered a "robust and independent" new investigation into how MI5 gave false evidence to multiple courts, ...

MI5 could still face contempt of court proceedings following revelations that the intelligence agency provided incorrect ...

Prince Andrew demanded a face-to-face meeting with Sir Ken McCallum, the director of the UK's Security Service MI5, after his longtime close confidant was accused of being a Chinese spy.

MI5 accepts that the status of a neo-Nazi agent should no longer be protected, after previously refusing to confirm if they were an informant A BBC investigation found MI5 had given false evidence ...

News; UK News; MI5; MI5 apologises after lying over neo-Nazi agent who attacked girlfriend with machete In 2022, then-Attorney General Suella Braverman went to the High Court to stop the BBC ...

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

A former opposition lawmaker in Britain’s House of Commons has alleged that the UK’s domestic spy agency MI5 may have issued a rare alert notice in 2022 about an alleged Chinese agent as a ...

The U.K.'s top intelligence agency MI5 failed to respond to key information that could have stopped the 2017 suicide bombing at an Ariana Grande concert in Manchester that killed 22 people.

The information was assessed by MI5 and not found to be terrorism-related, but an officer has admitted that they did consider one detail to contain a potentially urgent national security concern.

MI5 missed chance to stop attack at Ariana Grande concert, inquiry finds Tributes in Manchester, England, on May 23, 2017, after a suicide bombing at an Ariana Grande concert in the northwestern city.

MI5 chief in first joint public appearance with heads of Five Eyes spy agencies Ken McCallum will speak alongside counterparts from the US, Canada, Australia and New Zealand amid warnings about ...

Item 1 of 5 An employee poses as she views a D-Day landings decoy routes map and photographs of suspected spies which form part of ‘MI5: Official Secrets’, a new exhibition exploring the ...