Knoppix and root acces

[Egge Siegers]

Hai 
Im using debian for some time.
No i tried knoppix,
but what troubles me is that with the cdrom you can enter every file on
my debian installation (also all my root files) without passwords
Just start knoppix, then start programm, knoppix, root shell. In the
console I go to /mnt/hda3 en to root. I can see and do everything
whithout any password.