# Anthropic's Secret Mode Pretends It's Not Anthropic

- slug: anthropics-secret-mode-pretends-its-not-anthropic
- date: 2026-03-31
- category: Artificial Intelligence

Anthropic shipped a source map file exposing Claude Code for the second time in roughly 14 months, according to Fortune and multiple security outlets. The first fix did not hold, and what the code revealed was more embarrassing than the leak itself.

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