Tuesday, October 13, 2026

AI poses potential threats of bioweapons access for terrorists, warns MI5 chief

October 13, 2026
2 mins read
AI poses potential threats of bioweapons access for terrorists, warns MI5 chief

AI poses a potential threat to national security, warns MI5 chief

AI could give terrorists access to bioweapons or generate new pathogens if guardrails on the technology fail, the head of MI5 has said, reports BritPanorama.

In a speech at Thames House, Sir Ken McCallum provided his annual update on terror threats facing the UK, emphasizing that the misuse of AI represents a key concern for national security.

He outlined several ways in which AI may be exploited, including its potential for creating bioweapons. “AI is already supercharging the cybersecurity contest between attackers and defenders,” he stated. The MI5 chief noted that terrorists have sought to exploit AI to enhance their reconnaissance and attack methodologies, with AI-enabled drones presenting new challenges.

During the address, he announced the establishment of a new AI Threat Assessment Centre, specifically tasked with evaluating the risks linked to evolving AI technologies. This initiative will operate in collaboration with the National Crime Agency and the National Cyber Security Centre, both vital components of the UK’s security architecture.

Sir Ken expressed particular concern about less sophisticated actors gaining capabilities in the AI era if adequate safety measures are not implemented. He reflected on the historical challenges faced by terrorist organizations in acquiring advanced weaponry, noting, “Many terrorists would dearly love to have some kind of capability around chemical or biological or radiological weaponry but that hasn’t been easy for them to achieve.”

He warned that the misuse of AI could facilitate dangerous knowledge reaching individuals who should not have access to it, along with the potential for AI to create novel pathogens. “The alignment problem”—essentially the challenge of ensuring AI technologies align with human values—was highlighted as a concern that warrants significant attention. Sir Ken stated, “Human history has given us no experience of facing an actor which is smarter than we are,” underscoring the uniqueness of this situation.

He called for the British public to engage actively in maintaining national security and enhancing resilience, identifying three crucial areas for focus: systemic resilience of critical infrastructure, societal cohesion, and technological robustness. Sir Ken urged citizens to think about their local environments and the implications of national security measures. “We all have a stake in our national security,” he emphasized.

Addressing the risks posed by cyber attacks, he mentioned attacks on energy and water systems and emphasized that community cohesion plays a vital role in national security. He noted the alarming trends of violence directed at political figures and community groups, referencing the murder of Ann Widdecombe in July as a disturbing example.

“Those who mean us harm are trying to divide our communities and turn us against one another,” he cautioned, reiterating that authoritarian regimes exploit social frictions to undermine societal cohesion.

MI5’s involvement in reviewing security arrangements for political figures was also announced in light of recent events, highlighting the agency’s proactive role in addressing rising security threats in a rapidly evolving technological landscape.

As the threat landscape continues to morph with advancements in technology, the implications for national and global security remain complex and demand ongoing scrutiny.

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