Dan GoodinMay 7

Mozilla has provided behind-the-scenes details on the 271 vulnerabilities it discovered with the help of Mythos. Those details include full Bugzilla reports on 12 of the vulnerabilities. I'd be curious for people to look at the reports and hear what they think.

https://hacks.mozilla.org/2026/05/behind-the-scenes-hardening-firefox/

Behind the Scenes Hardening Firefox with Claude Mythos Preview – Mozilla Hacks - the Web developer blog

New details about what we found, and how agentic harnesses are now able to reproduce real bugs and dismiss false positives.

Mozilla Hacks – the Web developer blog
Show threadVissMay 7
@dangoodin considering the mythos papers that anthropic wrote which said they found hundreds, mozilla confirming less than 10% of those seems to me like a desperate grasping at straws by anthropic to somehow prove they werent lying through their teeth with their writeup
Show threadDan GoodinMay 7

@Viss

So, nobody is even going to take a look?

Show threadWulfy—Speaker to the machines

@dangoodin @Viss

No, not the folks waiting for the burn!

Zero days don't matter
AI is a fad
If we ignore the new attack surface and vector it will go away.

#imsosmart

May 7 at 5:31pmWeb