Recently the public has been shocked by the statements from some antivirus companies about a protection fault used by different Trojan programs to intrude and disguise malicious activity on the userâ€™s PC. The protection fault was caused by protection system from Sony.
Panda, for instance, posted a full report on the issue.
Notice, that music CDs copy protection is in focus here.
However, the gaming copy protection system from Sony also known as Securom has the same drawback. Some enthusiasts managed to apply cheats using this Sony vulnerability issue in World of Warcraft.
Some links for more info: