A white supremacist who "idolised Hitler" planned to carry out a terrorist attack at the Lord Mayor of London's residence, a ...

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

The new National Security Strategy document warns Britain is facing "growing threats at home" - as MI5 warn a terror attack ...

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 evidence.

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.

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

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

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 heard. Alfie Coleman was detained by armed police in a Morrisons car park ...

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, ...

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 corporation argued the threshold ...

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 ...

Slow Horses' star Rosalind Eleazar gets real about her MI5 outcast Louisa Guy: ‘She’s really not okay.’ The actress discusses ...