One thing that “does trouble me”, McCallum said, is the pace at which the world is evolving. He noted that the "weird bits inside MI5” that focus on how Britain's adversaries will act in five years from now are seeing those timelines shortening due to AI.

He said it is now his responsibility to “drag my organization forwards at a faster pace than human beings generally want to be dragged.”

Sifting threats from hype

The new threat assessment centre, known as AITAC, will bring together expertise from bodies including Britain’s AI Security Institute, National Crime Agency, and the National Cyber Security Centre to “separate the bluster from the realities” of AI's threat to the British public.

This is the third center of its kind MI5 has set up, after creating similar units dedicated to analyzing terrorism and state threats.

Asked how the agency would work, McCallum said it would look at emerging trends and how the U.K. can best think about and prioritize the various manifestations of AI threats. 

Though the government, rather than AITAC, will decide the response to AI, McCallum said it was partly set up to avoid “competitive analysis, slightly conflicting and confusing messages that otherwise might exist, where you have different departments offering their own opinion” on the issue.