Show HN: ClipboardShield – A Clipboard Firewall for Windows (FOSS)

I’d like to introduce ClipboardShield [1], a free open-source clipboard firewall for Windows 10/11. It helps protect against clipboard hijacking attacks [2], where malicious apps silently read or modify clipboard contents (e.g., replacing copied cryptocurrency addresses to modify the recipient and steal user’s funds or stealing sensitive data like passwords). How it works: - Define rules to allow or block clipboard access for specific apps. - Prevent unauthorized apps from reading or modifying clipboard contents. - Open-source and community-driven – contributions are welcome! - Since many people copy and paste passwords, crypto addresses, and other sensitive data, ClipboardShield adds an extra layer of security by letting you control which applications can access the clipboard. Get Started: - GitHub repository: <https://github.com/CoinFabrik/ClipboardShield https://github.com/CoinFabrik/ClipboardShield> - Quickstart guide: <https://github.com/CoinFabrik/ClipboardShield/blob/master/README.md https://github.com/CoinFabrik/ClipboardShield/blob/master/RE...> - First release (includes source code and binary installer): <https://github.com/CoinFabrik/ClipboardShield/releases/tag/20250314 https://github.com/CoinFabrik/ClipboardShield/releases/tag/2...> ClipboardShield uses a system-level hooking engine to manage clipboard access without interfering with normal usage [3]. [1] https://github.com/CoinFabrik/ClipboardShield https://github.com/CoinFabrik/ClipboardShield [2] https://nordvpn.com/cybersecurity/glossary/clipboard-hijacking-attack/ https://nordvpn.com/cybersecurity/glossary/clipboard-hijacki... [3] https://github.com/nektra https://github.com/nektra