How do computers get malware?
Computers become infected with malware through a number of mechanisms – sharing files on jump drives or floppy disks, opening suspicious e-mail attachments, or visiting websites that are themselves infected with malware. Additionally, malware can arrive via downloaded files, such as music or videos from a peer-to-peer file sharing networks (such as Kazaa or BitTorrent), or simply by visiting a website that has been hacked and infected. No longer is it a matter of staying away from “bad” websites. Unfortunately any website that is not properly secured can be hacked and infected with malware that could infect your PC.