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Claude Mythos Has Found 271 Zero-Days in Firefox

Mozilla's breakthrough AI vulnerability hunting found 271 Firefox zero-days since February, signaling industry-wide shift.

Summary written by editorial AI · Source link below

Filed by Schneier on Security1 min readRead at source ↗

That’s a lot . No, it’s an extraordinary number: Since February, the Firefox team has been working around the clock using frontier AI models to find and fix latent security vulnerabilities in the browser. We wrote previously about our collaboration with Anthropic to scan Firefox with Opus 4.6, which led to fixes for 22 security-sensitive bugs in Firefox 148. As part of our continued collaboration with Anthropic, we had the opportunity to apply an early version of Claude Mythos Preview to Firefox

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