To add to Watchdog's excellent reply, equally sad is that many users simply dont care. Add the many who if they use antivirus software dont keep it updated. Others dont avail themselves of good free online scanners. They just merrily wander the various networks clicking and downloading and spreading the problem around in spite of the efforts many networks, help channels, and websites have made to educate them to the dangers.
Yes, a concerted effort by users would make a huge difference.
