Tech »  Topic »  Anthropic confirms it leaked 512,000 lines of Claude Code source code — spilling some of its biggest secrets

Anthropic confirms it leaked 512,000 lines of Claude Code source code — spilling some of its biggest secrets


(Image credit: Anthropic)

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  • Anthropic employee accidentally leaked Claude Code source via npm map file
  • Leak exposed 1,900 TypeScript files with 500K+ lines of code, quickly mirrored on GitHub
  • Anthropic confirmed no customer data exposed, calling it a packaging error amid recent vulnerabilities like ShadowPrompt and Cloudy Day

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