File:X11 xinput keylogger demo.png

Summary
Screenshot showing a simple example of X11's vulnerability to keylogging, even without privilege escalation. One window shows a root gedit process, another a (non-root) terminal running "xinput test ", logging the gedit keystrokes. Uploaded for use in a forthcoming mini-guide on X11 sandboxing (an addendum to Sakaki's EFI Install Guide).