We've all been there. Emails saying you've already won money, pop-up ads that want you to click and claim a free prize. Online scams and viruses can not only put your computer at risk, but also your privacy, identity, and money. Each year, the number of trojans, worms and viruses steadily increases to a point where we can hardly feel safe while logging on. Here is the plain and ugly truth about this epidemic of computer threats.