Claude Mythos Identifies 271 Vulnerabilities in Mozilla’s Firefox

Mozilla shipped Firefox 150 this week with patches for 271 security vulnerabilities discovered by Anthropic’s Claude Mythos Preview in an initial evaluation. The scan forms part of Project Glasswing, Anthropic’s coordinated defense effort that grants limited Mythos access to critical infrastructure partners. Mozilla Patches 271 Vulnerabilities After Claude Mythos Evaluation In a recent blog post,