Mozilla Says 271 Vulnerabilities Found by Mythos Have "Almost No False Positives"
Mozilla said Mythos found 423 Firefox bugs in April, and researchers published details on 12 vulnerabilities while engineers patch them manually.
- On Thursday, Mozilla provided details on using Anthropic Mythos to identify 271 Firefox security flaws over two months, marking a significant improvement from AI capabilities six months ago.
- Mozilla Distinguished Engineer Brian Grinstead credited a custom "harness" for the breakthrough, which provided Mythos access to the same testing pipelines human developers use.
- The system identified 12 specific bugs, including a 15-year-old HTML parsing error and complex vulnerabilities in Firefox's "sandbox" where exploits are traditionally intricate.
- Despite AI's success, human engineers must manually write and review patches for every bug, as Mozilla does not currently deploy AI-generated code directly to production.
- Grinstead notes this tool shifts the advantage to defenders, though Amodei suggests "there's a better world on the other side of this," acknowledging bad actors likely use similar techniques.
18 Articles
18 Articles
A company tested Claude Mythos Preview. It says the AI found a bug that existed for 20 years
Only a handful of users have access to Anthropic's Mythos tool. Mozilla is one, and it says it found hundreds of security bug fixes.Samuel Boivin/NurPhoto via Getty ImagesMozilla is one of the companies that has access to Anthropic's powerful new Mythos model.The company said it fixed 423 security bugs in April. That's 398 more than it did in January.Previous AI systems produced "slop," Mozilla wrote.AI is getting scary good at finding software …
With the help of Mythos Mozilla was able to identify dangerous vulnerabilities in its browser that could be exploited by hackers
The Register
Mozilla boasts Mythos boosted Firefox bug cull
Mozilla fixed 423 Firefox security bugs in April, a repair rate more than five times higher than the 76 fixes issued in March and almost 20 times higher than its 21.5 monthly average last year. The browser maker previously said Anthropic's ballyhooed Mythos Preview model found 271 of these in Firefox 150. Now, a trio of technical types has come forward to provide a bit more detail about what Mythos (and its less storied sibling Opus 4.6) actuall…
Coverage Details
Bias Distribution
- 67% of the sources are Center
Factuality
To view factuality data please Upgrade to Premium
