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 ...

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.

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.

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 ...

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.