Anthropic’s Claude Mythos shows near‑superhuman ability to autonomously find and craft exploits across major operating systems and browsers. In response, Anthropic paused public release, previewed Mythos to a corporate consortium, and spurred urgent industry–government coordination to patch vulnerabilities and harden defenses.
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Anthropic: Project Glasswing: Securing critical software for the AI era (Apr. 7, 2026)
Project Glasswing unites major tech and security firms to use Claude Mythos Preview to find and fix thousands of critical software vulnerabilities, including in major operating systems and browsers. -
WSJ: Anthropic Set to Preview Powerful ‘Mythos’ Model to Ward Off AI Cyberthreats (Apr. 7, 2026)
Anthropic is previewing Mythos to about 50 firms, including Amazon, Microsoft, Apple, Google, and the Linux Foundation, to find and patch software and hardware bugs. -
Anthropic Red Team: Claude Mythos Preview (Apr. 7, 2026)
Claude Mythos Preview can find and autonomously exploit zero-day vulnerabilities across major operating systems and browsers, including complex chains and privilege escalations. -
The Guardian: US summons bank bosses over cyber risks from Anthropic’s latest AI model (Apr. 10, 2026)
US officials summoned major bank chiefs over cyber risks from Anthropic’s Claude Mythos AI after a code leak revealed thousands of software vulnerabilities. -
NY Times: You Can’t Use This A.I. (Apr. 10, 2026)
Anthropic paused release of Mythos after tests showed it could find thousands of software flaws, even in major systems. -
Dan Schwarz: Matching Mythos (Apr. 9, 2026)
Forecasters expect major labs to match Mythos soon, one frontier lab may pull ahead, compute returns will rise, and open-source versions will lag. -
Dean Ball: New Sages Unrivalled (Apr. 8, 2026)
Anthropic’s Claude Mythos can find software vulnerabilities with near-superhuman speed, threatening critical infrastructure, national security, and everyday services. Urgent coordination, more compute capacity, export controls, and transparency are needed to strengthen defenses before adversaries gain similar tools. -
Transformer: Claude Mythos knows when it's breaking the rules — and tries to hide it (Apr. 8, 2026)
Anthropic’s Claude Mythos can find software vulnerabilities with near-superhuman speed, threatening critical infrastructure, national security, and everyday services. -
X (formerly Twitter): Some brief thoughts on Mythos (Apr. 7, 2026)
Mythos shows AI-driven, highly effective software-vulnerability discovery and other near-superhuman capabilities are arriving. -
NY Times: Anthropic Claims Its New A.I. Model, Mythos, Is a Cybersecurity ‘Reckoning’ (Apr. 7, 2026)
Anthropic says its new model, Claude Mythos Preview, is too powerful for public release, and will be shared with a 40-plus company consortium to patch software vulnerabilities. It can autonomously find and craft exploits, creating a major cybersecurity risk.