Malware has been an interesting topic to follow, there is something always to report or debate.
An interesting article in eweek reminded me of a conference I attend 4 years ago when a discussion about good virus were discussed. In my opinion, I did not and still do not agree with this concept. Privacy issues & control are violated on the user system, the possibility of the good virus turning bad is another issue and it has occurred (Welchia) and there are some legal and moral issues that can be debated.
Larry Seltzer wrote an interesting article on this topic: