A woman is suing MI5 over an alleged failure to protect her from an abusive relationship with one of its agents.

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

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

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 ...

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.

British spy chiefs will be expecting a higher level of threat from Iranian agents in the wake of US attacks on the country, a ...

A victim of abuse at Kincora Boys' Home has received an undisclosed settlement after claims a paedophile housemaster was ...

Moore says the notion that MI5 did not know that McGrath was committing sexual offences against children is “difficult to believe”. He cites a report from the Irish desk of MI5 dated April 14, 1972, ...

Blaise Metreweli has been appointed as the first female head of Mi5 from an all-woman shortlist composed on merit alone. It’s ...

What happens when someone accused of domestic abuse is also a police or MI5 agent, and does the legal duty to protect that ...

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

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