A BBC investigation revealed that the spy agency had lied to three courts about a misogynistic agent who used his MI5 role to ...

Rosalind Eleazar captures the grief hidden beneath MI5 outcast Louisa Guy’s steely exterior with a subtle and restrained ...

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

An MI5 agent “deliberately and repeatedly lied” after confirming to a journalist that a violent and misogynistic neo-Nazi was ...

MI5 has offered an “unreserved” apology to the High Court saying there had been “failings and errors” in legal proceedings ...

IPCO began its secret investigation into MI5's handling of the agent - a genuine neo-Nazi known publicly as X who informed on ...

Melita Norwood was the KGB's longest-serving female agent in Britain, until being exposed in 1992 by legendary defector ...

IPCO’s investigation, initiated in 2022 after a BBC report revealed disturbing conduct by Agent X, originally found MI5 had ...

The High Court has been rocked by MI5's 'unreserved' apology, as a judge demands secret documents amid concerns over false ...

The MI5 was 'actively tasking' Britain's top IRA spy 'Stakeknife' with missions throughout his time as the Army's prized informant, unearthed documents have shown. It is at odds with the ...

A vulnerable teenage girl who is believed to have killed herself after her terror charges were dropped was investigated by MI5 until her death, an inquest has heard ...

Sir Brian Leveson is the Investigatory Powers Commissioner, responsible for overseeing MI5's activities The watchdog charged with holding MI5 to account rewrote a report into the handling of a ...