Mozilla says 271 vulnerabilities found by Mythos have “almost no false positives”
Summary
Ars Technica reports Mozilla used Anthropic Mythos with a custom agent harness to identify 271 Firefox vulnerabilities over two months, achieving a low rate of false positives. The piece explains the role of the harness and a second LLM in verification, while noting skepticism around AI-assisted security claims. It highlights potential implications for scale in security testing and the importance of transparent methodology.