News Summary

Mozilla has successfully utilized the AI model Mythos to identify 271 security vulnerabilities in Firefox, achieving almost no false positives. This breakthrough is attributed to improvements in AI models and the development of a custom harness by Mozilla to support Mythos in analyzing Firefox source code. The harness acts as a guiding agent, providing Mythos with specific instructions and tools necessary for thorough bug identification. This approach represents a significant advancement over previous AI-assisted vulnerability detection methods, which often resulted in false positives requiring extensive manual review.