Security enhancements, prevent mounting /dev/sdb1

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http://askubuntu.com – Overview I am running Ubuntu 12.04 - 64bit - Gnome3 as my preferred Operating System at work. However after recently taking time off, I return to my desk finding my machine was broken in to (I am also told it took most of an afternoon to do). Initial Enhancements The very first thing I did was removed root access, simply passwd -u root. The second thing I did was create a new user with 'sudo' access adduser fkchu. I finally modified the sudoers file visudo only granting fkchu access to sudo (root didn't even have this access). Thus, to access root privileges one would; a) login my normal u (HowTos)