---
title: "Discussion on \"Claude Code's Source Leaked. The Undercover Mode Should Worry You.\" | Hashnode"
description: "Discussion on \"Claude Code's Source Leaked. The Undercover Mode Should Worry You.\". I woke up to the news that the tool I use every day just had its source code leaked. Not intentionally — Claude Code accidentally shipped a 59.8 MB sourcemap in npm package v2.1.88. Within hours, 512,000 lines of TypeScript were mirrored on GitHub fo..."
url: "https://hashnode.com/posts/claude-codes-source-leaked-the-undercover-mode-should-worry-you/69ccaa8ea5dac009f7185c72"
---

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# [Claude Code's Source Leaked. The Undercover Mode Should Worry You.](https://connectengine.hashnode.dev/claude-codes-source-leaked-the-undercover-mode-should-worry-you?utm_source=hashnode&utm_medium=feed)

I woke up to the news that the tool I use every day just had its source code leaked. Not intentionally — Claude Code accidentally shipped a 59.8 MB sourcemap in npm package v2.1.88. Within hours, 512,000 lines of TypeScript were mirrored on GitHub fo...

Apr 1 · 4 min read · connectengine.hashnode.dev  
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-   [#anthropic](https://hashnode.com/tag/anthropic)
-   [#claude-code](https://hashnode.com/tag/claude-code)
-   [#security](https://hashnode.com/tag/security)

## Written by

[Tobias Koehler](https://hashnode.com/@connectengine)

@connectengine · Bangkok, Thailand

  
[View profile](https://hashnode.com/@connectengine)

Building automation SaaS solo. n8n, Supabase, Docker. Sharing what breaks and what ships.

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