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 ...

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 ...

An MI5 agent “deliberately and repeatedly lied” after confirming to a journalist that a violent and misogynistic neo-Nazi was operating as an undercover source, a court has heard.

MI5 has apologized to the BBC and court over a neo-nazi spy story that Daniel De Simone had been investigating.

MI5 lied "deliberately and repeatedly" as it tried to defend its handling of a neo-Nazi agent who abused women, the BBC has told a panel of High Court judges.

Britain’s MI5 domestic intelligence agency plans to send out e-mail terrorism alerts to the public, pioneering an effort to use the Internet to warn of heightened risk.

A GCHQ logo on a wall inside Britain's Government Communication Headquarters, in Cheltenham, November 17, 2015. ... follows MI5, three decades later, in appointing a female head.

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 ...

Ken McCallum, Director General of MI5, delivers the annual Director General's speech at Counter Terrorism Operations Centre in west London, Tuesday Oct. 8, 2024. (Yui Mok/PA via AP ...