At the heart of the case is the violent abuse of a woman by a state agent under MI5's control. After the BBC began ...

When the BBC revealed that MI5 had lied to three courts, the Security Service apologised for giving false evidence - vowing to investigate and explain how such a serious failure had occurred. But ...

MI5 head Sir Ken McCallum said the Security Service would co-operate fully with the new investigation The High Court has ordered a "robust and independent" new investigation into how MI5 gave ...

British security services thwarted 15 Iranian plots to murder or kidnap people in the UK. But more funding is needed to ...

A ruling by London's High Court cited the domestic intelligence agency's failure to explain why representatives had ...

This comes as the Security Service, MI5, has said terrorism threats to the UK are "substantial," explained on its website to mean "an attack is likely." ...

The home secretary says the government accepts the high court’s ruling that an independent investigation should take place.

The horror of Kincora: MI5, Mountbatten, Ian Paisley, the Orange Order and the sexual abuse of children during Ulster’s Troubles ...

It follows a mixed picture in recent years, with one such attack in 2023 and 2022, none in 2021 and 2020, and five in 2019.

The breach was a catastrophic failure of security, and the British Security Service, MI5, was tasked with plugging the leak, and fast.

In practice, this could include ballistic missiles fired at RAF Akrotiri but here in Britain the Security Service, MI5, will also be on the alert for any hostile acts by Iran that could include ...