claude-code-source-leaked-via-map-file-mar2026

Summary

In March 2026, Anthropic's internal Claude Code source code became publicly accessible because a source-map file was left exposed, and in the same month, details about models that had not yet been released turned up in a public database. This means sensitive engineering and roadmap information is now outside the company's control, which affects what can be assumed about confidentiality, competitive positioning, and the security posture of any system built on that code.