The family of murdered GAA official Sean Brown have held a protest outside MI5 HQ in London to highlight their case. The ...

Relatives of a man shot dead and secretly buried by the IRA have reacted angrily amid claims MI5 has attempted to block the ...

A neo-Nazi teenager was snared by police and MI5 as he tried to buy a Makarov pistol for a terrorist attack, a court has ...

MI5's entire operational plan involved a sustained attempt to persuade me to stop doing a story by disclosing that X was an agent. Second, the report said "it was not MI5 policy to record all such ...

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.

The watchdog charged with holding MI5 to account rewrote a report into the handling of a violent neo-Nazi agent after the Security Service gave it false information, the BBC can reveal. An early ...

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 ...

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 offered an “unreserved” apology to the High Court saying there had been “failings and errors” in legal proceedings related to an alleged source accused of abusing two women.

MI5 has offered an “unreserved” apology to the High Court saying there had been “failings and errors” in legal proceedings related to an alleged source accused of abusing two women. In 2022, ...