Anthropic announced Project Glasswing, a cybersecurity initiative backed by major tech companies including AWS, Apple, Google, Microsoft, and NVIDIA. The project centers on Claude Mythos Preview, an unreleased AI model that has already discovered thousands of high-severity vulnerabilities across major operating systems and web browsers, including flaws that survived decades of human review. Anthropic is committing $100M in usage credits and $4M in direct donations to help over 40 organizations use the model for defensive security scanning. This represents a critical shift where AI capabilities in cybersecurity now match the most skilled human experts at finding and exploiting software flaws.