Not all viruses that find their way onto your computer dramatically crash your machine. Instead, there are viruses that can run in the background without you even realizing it. As they creep around, they make messes, steal, and much worse.
Malware today spies on your every move. It sees the websites you visit, and the usernames and passwords you type in. If you login to online banking, a criminal can watch what you do and after you log off and go to bed, he can log right back and start transferri