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Anthropic Mythos shaping up as nothingburger (www.theregister.com)

submitted 1 day ago by HaraldvonBlauzahn@feddit.org to c/programming@programming.dev

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[...]

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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[–] IanTwenty@piefed.social 10 points 1 day ago

This is the meat of the headline:

For example, the Anthropic-claimed 181 Firefox exploits ran with the browser sandbox turned off and the FreeBSD exploit transcript "shows substantial human guidance, not autonomy."

Additionally, the "'thousands of severe vulnerabilities' extrapolates from 198 manually reviewed reports. The Linux kernel bug was found by Opus 4.6, the public model, not Mythos," Devansh said.

Another researcher, Davi Ottenheimer, pointed out that the security section (Section 3, pages 47-53) of Anthropic's 244-page documentation "contains no count of zero-days at all. With no CVE list, no CVSS distribution, no severity bucket, no disclosure timeline, no vendor-confirmed-novel table, no false-positive rate."

Ottenheimer likens it to "the ending of the Wizard of Oz, a sorry disappointment about a model weaponizing two bugs that a different model found, in software the vendor had already patched, in a test environment with the browser sandbox and defense-in-depth mitigations stripped out."