this post was submitted on 23 Apr 2026
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176
Anthropic Mythos shaping up as nothingburger (www.theregister.com)
submitted 3 days ago by HaraldvonBlauzahn@feddit.org to c/technology@lemmy.world
38 comments fedilink hide all child comments
 

cross-posted from: https://feddit.org/post/28915273

[...]

That marketing may have outstripped reality. Early reports from Mythos preview users including AWS and Mozilla indicate that while the model is very good and very fast at finding vulnerabilities, and requires less hands-on guidance from security engineers - making it a welcome time-saver for the human teams - it has yet to eclipse human security researchers.

"So far we've found no category or complexity of vulnerability that humans can find that this model can't," Mozilla CTO Bobby Holley said, after revealing that Mythos found 271 vulnerabilities in Firefox 150. Then he added: "We also haven't seen any bugs that couldn't have been found by an elite human researcher." In other words, it's like adding an automated security researcher to your team. Not a zero-day machine that's too dangerous for the world.

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[–] jj4211@lemmy.world 4 points 2 days ago* (last edited 2 days ago)

Note that in this case, very specifically, they had to yank Firefox's javascript engine out of Firefox "but without the browser’s process sandbox and other defense-in-depth mitigations.” They had to remove the mechanisms designed to quash vulnerabilities.

And they had to test explicitly against Firefox 147 vintage because Firefox 148 had already fixed the two issues that Mythos exploited to get an impressive number. Before Mythos even ran the key problems had been found and patched...