Some interesting links, but I doubt it'll be going anywhere soon.
Take a look at Software protections such as Star-Force, Safecast et al. Star-Force actually installs
hidden drivers on your PC, and uses system level access. Any trojan/virus/bad stuff could just piggy-back in, and Safecast IIRC actually writes to your boot-sector.
The scary thing is that the EULA doesn't enlighten the user to any of this.