Mythos found 271 Firefox flaws - none a human couldn't spot
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Mythos found 271 Firefox flaws - none a human couldn't spot
"For a hardened target, just one such bug would have been red-alert in 2025, and so many at once makes you stop to wonder whether it's even possible to keep up."
"Our work isn't finished, but we've turned the corner and can glimpse a future much better than just keeping up. Defenders finally have a chance to win, decisively."
"Until now, the industry has largely fought security to a draw. Instead, we aimed to make them so expensive that only actors with functionally unlimited budgets can afford them."
"Computers were completely incapable of doing this a few months ago, and now they excel at it. We have many years of experience."
The Mozilla Foundation tested Anthropic's Mythos AI model, which identified 271 vulnerabilities in Firefox 150, compared to 22 found by the Opus 4.6 model. Mozilla's CTO expressed concern over the high number of flaws but also viewed it as a positive development for security teams. He believes that the advancements in AI tools like Mythos could lead to a more effective defense against software vulnerabilities. The goal is to make exploits costly enough to deter attackers, shifting the balance in favor of defenders in cybersecurity.
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