UK AI Security Institute
Coverage of UK AI Security Institute in the Nexus archive.
- ‘Fix this code’—The three little words behind the U.S. government decision that shut down Anthropic’s Fable and Mythos AI models
The U.S. government imposed export controls on Anthropic’s Fable 5 and Mythos 5 AI models after Amazon researchers discovered a security vulnerability triggered by the phrase 'fix this code,' enabling the models to generate exploitable security patches. Anthropic disabled the models for all users to comply with export regulations affecting non-citizen access.
- AI models are getting better at replacing cybersecurity pros on certain tasks
The UK AI Security Institute found that AI models are becoming more efficient in replacing cybersecurity professionals on certain tasks, with some models able to complete tasks in 16 minutes that would take a human expert 80% of the time. The institute's benchmark estimates that AI models' task time is doubling every 4.7 months. This advancement has significant implications for the field of cybersecurity.
- UK gov's Mythos AI tests help separate cybersecurity threat from hype
The UK AI Security Institute evaluated Anthropic's Mythos Preview model, finding it excels in chaining multi-step cyber-attacks compared to previous models. While Mythos performs well on individual security tasks, its ability to execute complex attack sequences sets it apart from other frontier models.