This is solid reporting on a real incident. Anthropic did leak Claude Code's source code (512,000+ lines) in a npm package update on March 31, 2026, due to an accidentally included source map file. The company confirmed the mistake and stated no customer data or credentials were exposed—just the CLI tool's architecture. The article quotes Anthropic directly, cites security researchers who first spotted it, and explains why this matters: competitors and security researchers now have a detailed blueprint of how Claude Code works. The framing is dramatic but accurate; some context about competitive and security implications could be deeper.