“A successful attack could be catastrophic”: Anthropic gives more groups access to Claude Mythos
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Anthropic is expanding Project Glasswing, adding approximately 150 new partner organizations across 15 countries to gain access to Claude Mythos Preview, an advanced AI model more powerful than the public Opus family. The model has already identified over 10,000 high- or critical-severity vulnerabilities across major operating systems and browsers. New partners span critical infrastructure sectors including power, water, healthcare, and communications. Anthropic warns that Mythos-class models will likely proliferate to other AI companies within 6–12 months, potentially without safety guardrails. Critics, including the CEO of Strike Graph, raise concerns about the program's lack of independent third-party validation, arguing that Anthropic selectively controls which findings are reviewed. OpenAI is running a parallel initiative called GPT-5.5-Cyber under its Trusted Access for Cyber program.
