# Firefox Has a New Security Auditor, and It Found 271 Bugs

- slug: firefox-has-a-new-security-auditor-and-it-found-271-bugs
- date: 2026-04-21
- category: Artificial Intelligence

Anthropic’s Mythos model synthesizes novel exploit variants — not pattern-matches, not fuzzes. The Firefox CTO says that capability just killed a core assumption of browser security.

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