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.

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 ...

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

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

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 ...

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.

This case, which began with violence inflicted by an MI5 agent on his girlfriend, has now become a test of whether courts and the public can believe MI5. The man, known only as agent X ...