Anthropic Halts Mythos Rollout as U.S. Officials Warn Banks on Cyber Risk

Overview

• Anthropic chose not to release its new Mythos model to the public, opting for Project Glasswing to give vetted companies controlled access to find and fix weaknesses before a broader launch.
• Mythos identified software flaws across major operating systems and web browsers when prompted, including a 27-year-old OpenBSD bug and hundreds of previously unknown issues in widely used open-source code.
• Treasury Secretary Scott Bessent and Federal Reserve Chair Jerome Powell convened top bank CEOs in Washington to flag the model’s potential to speed up cyber intrusions and to urge stronger defenses.
• Participants in Glasswing include Apple, Amazon, Microsoft, Google, Cisco, CrowdStrike and JPMorgan, with reports that the group received about $100 million in usage credits to run tests.
• The program aims to let defenders share findings and patch critical systems first, which could reduce the chance that customers, hospitals, and banks face outages or data theft from AI-accelerated attacks.