HeimWall

HeimWall catches leaked secrets, credentials, and PII before they reach AI coding tools like Cursor, Claude Code, and Copilot, without compromising engineer privacy. For engineers, it's a free 15MB macOS application that flags leakage in prompts in real time, in under 50ms, using 47 detection rules. Everything runs locally: no prompts uploaded, no content stored, no cloud DLP in the loop. For organizations, an early-access dashboard shows security leads leak trends and risk signals across the team without ever exposing what anyone typed. Managers see signal, not content. What makes it different: detection happens on-device before data leaves the machine, not after it lands in a vendor's logs. And it never blocks development, HeimWall provides soft notifications instead of hard blocks, so the friction budget stays intact. The outcome: engineers stop pasting live API keys into AI assistants without changing how they work, and security teams get visibility they currently have zero of.