Comment by pflanze

Isn't it impossible to secure Skype because of it's use of X11? I've found it to be impossible to run Skype in untrusted X11 (so that it doesn't get full control over your X display), and running it in a nested X server is probably too slow for video. (And running it in a VM didn't work either for me because of audio and video performance. I really decided I couldn't use Skype except when running it on a real machine dedicated to running Skype.)