ISIS and al Qaeda present a “resurgent” threat to the United Kingdom, the head of the country’s domestic security service warned in a rare public intervention on Tuesday, as he outlined a changing landscape of terrorism that is increasingly relying on children and on the internet.

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In a speech delivered from the Counter Terrorism Operations Centre (CTOC) on Tuesday in London, MI5 Director General Ken McCallum warned that the UK is facing the most complex and interconnected

Nation-state actors are investing aggressively in advanced cyber operations to target government information and technology in a bid to sow "mayhem on British

Ken McCallum says Russian intelligence agencies are also on a ‘sustained mission to generate mayhem on British and European streets’ with ‘arson, sabotage and more’