PoliticsMI5 chief warns UK faces unprecedented threats from Iran and Russia

MI5 Director General Ken McCallum says the UK faces unprecedented security threats from hostile states including Iran and Russia, while the agency’s caseload has quadrupled in a decade. He says Iran-linked intimidation of opposition figures and media has used criminal proxies, with more than 20 arrests in the past year, and warns of emerging AI-related risks, including its potential use in recruitment.