Pentagon tech chief says Anthropic is still blacklisted, but Mythos is a separate issue

The Pentagon's chief technology officer stated that Anthropic remains classified as a supply chain risk (a designation meaning the company's technology threatens U.S. national security), but Anthropic's Mythos AI model, which has advanced capabilities for finding and fixing cyber vulnerabilities, is being treated as a separate urgent national security issue requiring the Department of Defense to strengthen its networks. The DOD has blacklisted Anthropic from working with defense contractors, though the agency is reportedly using Mythos internally and is open to negotiations about safeguards (called guardrails, or restrictions on how the AI can be used) if Anthropic agrees to terms similar to those negotiated with other AI companies.