More than 20,000 people in the UK have now been approached covertly online by Chinese spies, the head of MI5 said. It comes amid a new warning to tens of thousands of British businesses of the ...

The head of MI5 says Russia is on a mission to create mayhem on British streets - and says the UK is facing the most "complex ...

Vladimir Putin has compelled MI5 to prioritize Russia over counter-terrorism due to serious threats from Moscow. Ken McCallum ...

It comes as the head of MI5 warned Russia was on a 'mission to generate mayhem' on British soil during a chilling speech in October. Ken McCallum said the security service had 'one hell of a job ...

The Princess of Wales hosting a Christmas carol service and a warning from a spy boss about overseas threats lead the papers.

More James Manning/PA via AP, file Ken McCallum, the head of MI5, expressed regret in a rare televised statement, apologizing for his agency's inability to prevent the attack. Despite ...

The report also found one MI5 officer considered intelligence about Abedi to be a possible national security concern but didn't discuss it with colleagues quickly enough. Ken McCallum, the head of MI5 ...

Ken McCallum, the head of MI5, said in a rare televised statement that he was “profoundly sorry” his agency was unable to prevent the attack. Justice Rabinder Singh said the tribunal was ...

Duration: 1:33 Former MI5 head: Torture is 'wrong and never justifed' The use of torture is "wrong and never justified" says the ex-head of MI5, Eliza Manningham-Buller.