Yankput is a Mac clipboard manager built for developers. The core idea: your clipboard is a security hole and nobody is watching it. The feature that started it all — crypto address swap protection. Malware silently replaces crypto addresses in your clipboard while you're pasting. Yankput detects when a copied address changes before you paste and fires a system alert. It also detects and masks secrets (API keys, GitHub tokens, AWS keys, etc.) and auto-deletes them after 5 minutes. Plus an Incognito mode that pauses recording entirely. On top of that: JSON/XML formatter, Base64 encoder, SHA hash generator, regex tester, and line diff — all operating on whatever's in your clipboard. $14.99 one-time. yankput.app Would love feedback from the HN crowd, especially on the security angle.