Project Glasswing involved testing Anthropic's Mythos Preview, a security-focused large language model (LLM), on Cloudflare's code repositories to identify vulnerabilities. Mythos Preview demonstrated advanced capabilities in chaining multiple low-severity bugs into exploitable chains and generating working proof-of-concept exploits, significantly improving the quality and actionability of vulnerability findings compared to previous models. Cloudflare noted the importance of using a tailored harness for narrow, parallel tasks and additional safeguards, as well as rethinking security workflows to handle faster detection while managing the complexity of patching and defense.
Project Glasswing: What Mythos Showed Us
