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Mozilla said it fixed 423 Firefox security bugs in April after gaining access to Claude Mythos Preview.
Mozilla fixed 423 Firefox security bugs in April with Claude Mythos Preview, matching 14 prior months' total.
KEY POINTS
- Claude Mythos Preview uncovered 20-year-old and 15-year-old vulnerabilities missed by years of manual reviews.
- Mozilla built a model-driven pipeline to filter, triage, and patch hundreds of AI-discovered bugs efficiently.
- Several newly discovered bugs were sandbox escapes, which are essential for full browser exploit chains.
- The discovery pace shows defenders need AI-assisted pipelines before attackers weaponize similar model capabilities.
COMPANIES
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