The UK's terrorist threat level is currently classified as "substantial," meaning an attack is considered likely.

A closer look at recently declassified MI5 files on the intelligence failure surrounding the five "Cambrdige spies" ...

He is considered one of the most successful double agents of the Cold War period in British intelligence history. The MI5: Official Secrets exhibition opens at The National Archives this spring.

App happy | The UK is considering making households who only use streaming services such as Netflix and Disney pay the BBC licence fee, as part of plans to modernise the way it funds the ...

British counter-terrorism officers are on high alert amid concerns of a copycat attack in the wake of the New Orleans atrocity. Police and MI5 fear Islamic State supporters could be triggered into ...

Critics warn counter-terrorism police and MI5 will be swamped with thousands more cases involving people not considered to be ...

AT least 11 UK terror plot cases since 2020 have involved 3D-printed guns, MI5 has revealed. The threat of the untraceable weapons was highlighted by the agency’s ...

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...

Top secret MI5 files detailing first-hand accounts of confessions of three of Britain's most notorious double agents ...

MI5’s top interrogator was baffled by Kim Philby, admitting he could not determine whether he was a Soviet spy, according to newly declassified intelligence files. Jim Skardon, a former Metropolitan ...

Around the same time, a KGB defector told spooks that a young British actor had been targeted in a possible recruitment attempt in the Russian capital. MI5 thought this man might have been Bogarde ...