. Mozilla found and fixed 271 vulnerabilities in Firefox 150 while testing Mythos Preview—over ten times more than they found in Firefox 148 with Claude Opus 4.6;

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applfanboysbgon 5 hours ago | parent | next [-]

Did they allocate the same number of tokens to looking with Claude 4.6? Or did they find more because they looked more, owing to a special initative by Anthropic?

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kllrnohj 4 hours ago | parent | prev | next [-]

No, not really. Mythos found 3 CVEs, not 271.

https://www.flyingpenguin.com/mythos-mystery-in-mozilla-numb...

	▲	simonw 4 hours ago \| parent \| next [-]
		The Mozilla team responded to that argument here: https://hacks.mozilla.org/2026/05/behind-the-scenes-hardenin... - in the FAQ.
	▲	moyix 4 hours ago \| parent \| prev [-]
		I think you're confusing CVEs and vulnerabilities here? Mozilla (per their longstanding practice) grouped multiple vulnerabilities found internally under a small number of CVEs.

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5 hours ago | parent | prev | next [-]

[deleted]

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properbrew 5 hours ago | parent | prev [-]

> over ten times more than they found in Firefox 148 with Claude Opus 4.6

And how much with Opus 4.7? 5x?