Anthropic Mythos AI finds thousands of zero-day vulnerabilities as Fed and Treasury convene bank CEOs on cyber rik

"The discovery Mozilla released Firefox 150 with fixes for 271 security vulnerabilities identified by Mythos in a single evaluation pass. The number is striking not because Firefox is unusually insecure but because no human team had found them. The vulnerabilities had accumulated across years of development, each one a potential entry point for an attacker with the right tools. Mythos found all 271 in one run."

Claude Mythos Preview identified thousands of zero-day vulnerabilities across major operating systems and web browsers in controlled testing. The model found long-undetected flaws, including a 27-year-old bug in OpenBSD and a 17-year-old remote code execution flaw in FreeBSD. Federal Reserve and Treasury leadership convened bank CEOs to address the risk. Anthropic warned of a six-to-twelve month window to patch vulnerabilities before adversaries build similar models. Mozilla released Firefox 150 with fixes for 271 security vulnerabilities identified by Mythos in a single evaluation pass. The vulnerabilities had accumulated over years of development and represented potential attacker entry points. The cybersecurity industry noted the threat already existed, while the new capability accelerates discovery and exploitation risk.

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