With X11, an exploit in any GUI application can be turned into a privilege escalation vulnerability. On Wayland, to achieve the same, an exploit in a GUI applic

With X11, an exploit in any GUI application can be turned into a privilege escalation vulnerability. On Wayland, to achieve the same, an exploit in a GUI application would need to exploit another application running with higher privileges to escalate. Not running apps you don't trust is an overly simplistic security model, and completely ignores exploits.