MiSu is a minimal tool that can be used to immediately block keyboard and mouse input at the press of a keyboard shortcut. Utilities range from preventing accidental keystrokes or mouse moves when performing other tasks at the desk, preventing screensavers from being cancelled when walking away from the desk or even acting itself as a "screensaver" in order to make sure that the computer has not been tampered with.
Binaries are available at:
The source is available via Subversion at the following link:
MiSu is licensed under MIT.