Government & Politics
UK AI Security Institute (AISI)
The UK government's frontier-AI evaluation body, rebranded from the AI Safety Institute to the AI Security Institute in 2025 to emphasize protecting citizens, institutions and democratic values from AI misuse. The Institute was given access by Anthropic to evaluate Claude Mythos after Anthropic deemed it too dangerous to release, publishing an evaluation warning the model could hack into previously secure critical infrastructure and finding a sharp rise in cyberattack capability versus prior frontier systems; it published its inaugural Frontier AI Trends Report drawing on two years of evaluations, and further announced a refocus in June 2026 under Secretary of State Peter Kyle toward protecting citizens from AI misuse against institutions and democratic values.
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Sources
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Evidence
2 sources · 2 government/SEC filings · 49% avg. source confidence
- AI Security Institute (AISI) — UK AI Security Institute evaluates Claude Mythos, warns of critical infrastructure hacking risk52% source confidence
- ADS Group / Raconteur — UK AI Security Institute announces refocus, publishes inaugural Frontier AI Trends Report46% source confidence
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The Story So Far (last 6 months)
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UK AI Security Institute (AISI)'s Timeline
A sourced, dated history of UK AI Security Institute (AISI)'s key moments — founding to present.
Jan 2025 · Rebranded as AI Security Institute
The Institute was rebranded from the AI Safety Institute to the AI Security Institute, emphasizing protection of citizens, institutions and democratic values from AI misuse.
Jan 2026 · Evaluates Claude Mythos, finds sharp rise in cyberattack capability
The UK AI Security Institute was given access by Anthropic to evaluate Claude Mythos, a model Anthropic deemed too dangerous to release, publishing an evaluation warning the model could hack into previously secure critical infrastructure and finding a sharp rise in the model's cyberattack capability compared with prior frontier systems.
Jun 2026 · Announces refocus toward protecting institutions and democratic values
Secretary of State for Science, Innovation and Technology Peter Kyle announced a refocus of the Institute's mission in late June 2026 toward protecting citizens from those who would use AI against institutions, democratic values and the UK's way of life, alongside publishing its inaugural Frontier AI Trends Report drawing on two years of evaluations.