All forms of Copyright protection can easily be made useless. For example, SacuRom just becomes an additional thing a Cracker needs to add in to make his crack, you can literally crack and pirate every game out there worth playing. Even internet based games. CD-Checking is the only one that is outright damaging to your computer because of a constantly spinning CD, and SecuRom is just an underhand additional CD-Check. Basically, anyone determined to get an illegal copy of the game will get what he wants, Steam only inconveniences the legitimate owners of the game and this bothers me.