If it wasn't bad enough that Sony is keeping you from cutting the disk you bought over to your iPod, now their copy-protection program, that automatically installs when certain BMG or Sony disks are played on personal computers, have become a harbor for viruses. Anti-virus companies have identified 3 Trojan horse programs that are burrowing away in Sony's XCP2 technology. These programs, that hold little difference from spyware, are opening the company up to a lot of legal headaches from installing unauthorized programs on user's machines.

Source: MSNBC