Mozilla's partnership with Anthropic continues to pay off with it fixing an incredible 423 security vulnerabilities in April ...

Mozilla says Anthropic's unreleased Claude Mythos AI found security flaws that automated testing systems missed for years.

Mozilla managed to patch over 400 bugs using Anthropic's Claude Mythos Preview.

There had been much buzz about the abilities of Claude Mythos, and it appears that at least some of the hype might’ve ...

With a major update and smaller patches, Mozilla closed 423 Firefox vulnerabilities in April. Until recently, there were ...

Anthropic’s new Mythos model is changing how companies approach cybersecurity, with early results showing a sharp improvement ...

Mythos helped Mozilla Firefox discover 271 critical bugs. The result has sharpened questions about the tool's power and risk.

There's a 15-year-old bug hiding in Firefox's element – one of the most boring tags in HTML. It survived over a decade of ...

Anthropic's Mythos model, unveiled in April 2026, has transformed Firefox's cybersecurity by identifying critical ...

Mozilla: > Ordinarily we keep detailed bug reports private for several months after shipping fixes and issuing security advisories, largely as a precaution to protect any users who, for whatever ...

Anthropic’s Mythos model has transformed Firefox’s bug detection, uncovering thousands of high-severity vulnerabilities and enabling Mozilla to fix 423 bugs in April 2026 alone.

Unlike previous vulnerability disclosure slop, Grinstead said, the details provided by its harness-guided Mythos analysis, ...