10/03/2026
Interesting times ahead
Anthropic’s Claude Opus 4.6 AI model uncovered more than 100 software bugs in Mozilla’s Firefox browser during a two-week internal security test, including 14 high-severity vulnerabilities, according to Mozilla engineers.
The model identified its first flaw within about 20 minutes of scanning the codebase.
Mozilla said the number of serious bugs found during the experiment exceeded what is typically reported in two months through normal channels.
Researchers also asked Claude to generate exploit code; it produced two working exploits in a controlled environment, though Firefox’s real-world protections would likely block them.
Security experts say AI tools could accelerate vulnerability discovery—improving defenses but also potentially enabling faster cyberattacks.
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Source: WSJ
Image: Alamy