Latest Anthropic news

A 57 MB source map shipped inside the npm package exposed Claude Code's full TypeScript codebase. System prompts, unreleased features like KAIROS and ULTRAPLAN, internal codenames, and a subsystem called "Undercover Mode" are now public.

For $1-4 per person, an automated LLM pipeline matched 67% of anonymous Hacker News users to their real LinkedIn profiles. ETH Zurich and Anthropic researchers say pseudonymity no longer provides reliable privacy protection online.