Here are some interesting articles that are worth reading.
This is not intended to scare anyone so...
http://aplawrence.com/Linux/strange-hack.html
I know, wine has health benefits but wine can cause you to get virus infections if you aren't careful! Pun indeed...
http://www.linuxinsider.com/rsstory/...wlc=1257562509
http://blog.opensourcenerd.com/i-can-haz-virus
Again, the biggest problem is user ignorance.
http://www.dedoimedo.com/computers/internet.html