"2026 Just Got Crazy": Internet Erupts After Anthropic Source Code Leak Shakes AI Industry

The incident has been described as one of the most significant code leaks in recent times, involving the exposure of Claude Code.
ExtremeTech

Claude Code's Own Full Source Code Leaked

On Tuesday, a security researcher named Chaofan Shou revealed on X that he had found a 59.8MB JavaScript source map file in a public release of Anthropic's Claude Code. This file is intended for ...

Anthropic took down thousands of GitHub repos trying to yank its leaked source code — a move the company says was an accident

Anthropic executives said it was an accident and retracted the bulk of the takedown notices.
Tom's Hardware on MSN

45 years later, earliest DOS source code transcribed from a stack of old printouts found in garage

Microsoft VP confirms transcribed document “is perfect and recompiles byte for byte to the original binaries.” ...

$340 billion Anthropic that wiped trillions from stock market worldwide has source code of its most-important tool leaked on internet

AI firm Anthropic suffered a significant source code leak of its Claude Code agent, exposing unreleased features like an always-on AI and a pet system. This marks the third such incident for the ...
Bleeping Computer

Target's dev server offline after hackers claim to steal source code

Update, Jan 13th, 2026: Multiple Target employees have now confirmed in our follow-up report the authenticity of leaked source code sample set and shared internal announcements regarding an access ...
ET BrandEquity

Anthropic source code of its most-important tool, Claude Code, leaked on internet

Anthropic, the $340 billion AI company, has faced a significant leak of its Claude Code source code, exposing unreleased ...