Anthropic Claude source code leak explained: Techie reveals how a 4 am update exposed 512,000 lines of code

A routine software update for Anthropic's Claude Code tool accidentally leaked its entire source code, sparking rapid community response. Within hours, a developer rewrote the tool in Python and then ...
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Claude Code Source Leaked via npm Packaging Error, Anthropic Confirms

Claude Code 2.1.88 leak exposed 512,000 lines via npm error, fueling supply chain risks and typosquatting attacks.

Anthropic leaks source code for Claude Code again: Here's what happened

Anthropic has exposed Claude Code's source code, with a packaging error triggering a rapid chain reaction across GitHub and ...

Anthropic's AI Coding Tool Leaks Its Own Source Code For The Second Time In A Year

A researcher flagged the issue on 31 March 2026, and the code has since been archived on multiple public repositories, ...

Anthropic Accidentally Leaks Claude’s Source Code

After a researcher flagged the issue on March 31, the code spread rapidly across public repositories, raising new questions ...

What Anthropic’s Massive 500,000-Line Source Code Leak Reveals About Claude

Leaked Claude Code internals detail Undercover Mode to hide AI commits and a YOLO classifier that decides when user approval ...