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#1 Ars Technica Security general April 21, 2026 at 21:40 UTC

Mozilla: Anthropic's Mythos found 271 zero-day vulnerabilities in Firefox 150

By Kyle Orland

AI Summary

Anthropic's Mythos AI model discovered 271 zero-day vulnerabilities in Firefox 150, with Mozilla's CTO claiming the AI is "every bit as capable" as the world's best security researchers. This represents a significant advancement in AI-powered vulnerability discovery that could accelerate both defensive research and potential exploitation capabilities.

Read full article → https://arstechnica.com/ai/2026/04/mozilla-anthrop…

Relevance score: 95.0/100

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