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Policy & Regulation1 min read

MI5 head warns AI could change the stakes on biological weapons

Sir Ken McCallum, the head of the UK intelligence service MI5, warned during his annual threat update that AI could change the stakes for both existing and new biological weapons.

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Key points

  • MI5 head Sir Ken McCallum warned that AI could change the stakes for existing and new bioweapons
  • Johns Hopkins Center for Health Security director Dr Tom Inglesby addressed government concerns over AI biothreats
  • The Guardian podcast examines potential risk-reduction measures to prevent AI-assisted biological weapon development

In response to the warning, Guardian science editor Ian Sample spoke with Dr Tom Inglesby, director of the Johns Hopkins Center for Health Security and the Bloomberg School of Public Health. Inglesby discussed the primary factors driving government security concerns regarding AI-assisted biology and outlined possible risk-mitigation measures.

The story so far

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  1. MI5 head warns AI could change the stakes on biological weaponsthis story
Full story from The Guardian AI · by Presented by Ian Sample, produced by Madeleine Finlay, sound design by Ross Burns, the executive producer was Ellie BuryOpen source ↗

‘These risks are real’: the threat of AI bioweapons – podcast

The Guardian AI · 20 October 2026

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This text was published by The Guardian AI and written by Presented by Ian Sample, produced by Madeleine Finlay, sound design by Ross Burns, the executive producer was Ellie Bury. It is reproduced here with attribution so you can read it in full; the rights remain with the publisher. Read it at the source ↗

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MI5The GuardianJohns Hopkins Center for Health SecurityBloomberg School of Public HealthSir Ken McCallumIan SampleDr Tom Inglesby

The headline, key points and digest above were generated by Digest AI's editorial model from the linked sources. Automated summaries can contain errors: the sources are the record. Spotted a mistake? Tell us. Published by Martin K., who runs Digest AI and handles corrections.

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