Hypothetical: Imagine that you visit your local mall and browse around for stuff to buy. And you decide to buy a new CD from your favorite artist and you also buy a brand new cool USB stick thingy on an impulse. You go home and stick the CD into your laptop's CD drive. It prompts you to install some software. You do so and while you are listening to the music, you open the USB stick package and start experimenting with your new toy. It has a fingerprint reader so you install the software for that as well. Guess what… you might have just installed, not one, but two different rootkit-like software on your laptop.

It seems that Sony are at it again with their nasty software - you would have thought they would have learnt from the last time...