UK Spy Chief Warns of Rising Threats from Russia, Iran and AI

In October 2026, the head of the UK's MI5 spy agency gave a threat update warning that Russia remains "aggressor number one" and that Iran and Russia are stepping up hybrid campaigns in Britain. The MI5 chief said AI is "supercharging" security threats to the UK and warned of terrorists plotting AI drone attacks. He described a "new era of national security" and called for more resources against state threats than during the Cold War. He also issued a warning over the terror threat linked to the UK's migrant crisis.