system
4
Well, this is one of the oldest nonsenses on the net… i have heard this so many times that I can’t count it anymore - still there is NO proof of it - and believe me if this is true, there will be definitely some sign of evidence.
It is very difficult to build the TRUST between users and the (security) company - it really takes years. And such trust could be lost very quickly if there will be such foolish behaviour as virus distribution!
Not to speak about the problem that there are so many new viruses in the wild nowadays that most AV people wish to see this amount MUCH MUCH lower 
Pavel