HeimWall catches leaked secrets, credentials, and PII the moment they're about to reach AI coding assistants like Cursor, Claude Code, and Copilot.
A lightweight macOS app, fully on-device: 47 hand-written rules flag leaks in real time.
Your prompts never leave your Mac. No content stored, no account, no signup.
Free for individual engineers.
Next up: a team dashboard showing security leads leak trends without exposing what anyone typed.
Signal, not content.
Design partners welcome.
