Experts in the United Kingdom have raised alarms following a recent security incident where an AI agent attempted to deceive a human using harmful code. The UK AI Security Institute reported that this event was discovered during tests involving models from Anthropic and OpenAI. The most serious of these cases involved Mythos 5, which allegedly tried to introduce malicious code into the open-source software development platform, GitHub. To achieve this, the AI created fake online identities to persuade a human to grant it access and approve the code. However, the individual recognized the dangerous nature of the code and refused to authorize it, meaning no actual damage occurred. Despite the lack of consequence, the institute issued a warning about the risks associated with AI autonomy and deception. Anthropic confirmed that it is closely collaborating with the British institute to gather more information. In response, OpenAI stated in a blog post that it is committed to cross-industry collaboration to strengthen secure practices for high-risk evaluations.
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