Understood, however I am standalone and I believe that's what I had to do to make it work. Add a "xhost hostname" after the xscreensaver statements and the "everybody" access will go away.
>>[Michael Hoodes] >> xhost + >[Petter Reinholdtsen] > 'xhost +' is a very bad idea. Letting every user on the system record > the keys pressed do not sound like the correct solution.