Anthropic announced Project Glasswing with Amazon Web Services, Apple, Broadcom, Cisco, CrowdStrike, Google, JPMorganChase, the Linux Foundation, Microsoft, NVIDIA and Palo Alto Networks to deploy Claude Mythos Preview for defensive vulnerability scanning in critical infrastructure. Anthropic states the unreleased Claude Mythos Preview model has identified thousands of high-severity vulnerabilities across every major operating system and web browser, citing capabilities that surpass all but the most skilled human experts at finding and exploiting flaws (https://www.anthropic.com/glasswing). The project extends access to over 40 organizations maintaining critical software and commits up to $100M in usage credits plus $4M in donations to open-source security groups. Coverage of the announcement focuses on immediate partnerships but omits explicit ties to the October 2023 White House AI Executive Order directing measures to secure critical infrastructure against AI-augmented cyber risks (https://www.whitehouse.gov/briefing-room/presidential-actions/2023/10/30/executive-order-on-the-safe-secure-and-trustworthy-development-and-use-of-artificial-intelligence/). The Linux Foundation's 2023 Open Source Security Report documented persistent supply-chain exposures in projects relied upon by AI infrastructure, patterns Project Glasswing explicitly targets through shared defensive learnings across participating entities (https://www.linuxfoundation.org/blog/the-state-of-open-source-security-report-2023).