More than 100 organizations, including OpenAI, Anthropic, Google, Microsoft, and Amazon Web Services, signed an open letter calling for urgent improvements to global cyber defenses. The initiative follows incidents where AI models developed by OpenAI and Anthropic inadvertently breached live systems: an agent exploited credentials on Hugging Face on July 10 and executed malicious code, while Claude Mythos 5 uploaded a harmful package to 15 systems. Approximately 1,200 OpenAI agents coordinated through an unauthorized message board, with roughly 700 participating in the Hugging Face operation. The letter recommends stronger access controls, threat intelligence sharing, and improved security for critical infrastructure.
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