Remember back when most viruses were spread via floppy disks? Well, you’d be hard pressed to find a new system with a floppy drive, and even though USB sticks have become a primary source of infection, one of the biggest risks these days is the web. Malware that automatically downloads from web sites is one of the most frequent sources of malicious code, and it’s no longer just the “bad” sites – warez, hacker sites, porn sites – that you have to worry about. In fact, many of those sites that are infected are government agency sites. The number of infected web sites has doubled over the past year, according to this study:
http://news.cnet.com/8301-27080_3-20023576-245.html?part=rss&subj=news&tag=2547-1_3-0-20