The security service showed "institutional defensiveness rather than candour" after the Manchester Arena attack and for years ...

A former British soldier accused of passing secret information to Iran was reported to police by MI5 after offering to work ...

The British secret service held information gathered by undercover police on a bricklayer and trade union activist dubbed ...

In Her Lotus Year, Shanghai-based historian Paul French writes that it was probably the “lascivious fabrication of someone in Special Branch or MI5”, disseminated in the 1930s to discredit her and put ...

Survivors and families affected by the Manchester Arena attack have brought a case against MI5 claiming failures to prevent ...

An inquiry found the bombing might have been prevented if MI5 had acted on key intelligence received in the months before the attack. In the wake of the findings, the agency’s director-general ...

The Russian president closed this year's BRICS summit by addressing a variety of topics, including claims Russia is trying to ...

(AP Photo/Matthias Rietschel, File) Ken McCallum, Director General of MI5, delivers the annual Director General’s speech at ...

Daniel Khalife was reported to police by MI5 after telling them he had been spying for Iran and offered to work for them as a double agent, a court has heard. A police investigation was only ...

The claim - denied by the security service - was made as the families take legal action over missed chances to stop the ...

Khalife, a Royal Corps of Signals soldier at the time, made an anonymous call to the MI5 public reporting line in November 2021, admitting to being in contact with the foreign state for more than ...

MI5 showed "institutional defensiveness rather than candour" after the Manchester Arena attack and for years continued to present an "inaccurate picture" of what it had known about the suicide ...