MI5 chief warns of threats to UK from Russia, Iran and AI

Meanwhile, Sir Ken warned that Iran is also expanding a hybrid campaign in the UK. The intelligence chief said there had been 50 arrests in the last year over Iran-linked activities. Much of this Iranian aggression has been aimed at Jewish communities, Sir Ken added, and also at "harder targets, like military sites". Sir Ken did not mention arrests at RAF Fairford directly during his speech, but told reporters afterwards the incident was "not unique". He added: "We have seen Iranian interest beyond RAF Fairford in the UK."The incident at the airbase in Gloucesteshire, where three suspicious vans were seen parked nearby, has seen seven people arrested and bailed by counter-terrorism police. Burnham has said the incident was "almost certainly directed by Iran's Islamic Revolutionary Guard".The MI5 head said in his speech: "What I can say is that those who seek to cause mayhem on British streets - whether hired thugs here or their paymasters overseas - will meet an unflinching response."Sir Ken added that the National Security Act - a 2023 law designed to target people working against UK interests for foreign powers - is in heavy use, and has been employed to tackle threats from China...