You must have security software. Without a firewall and an antivirus program running in the background at all times, your computer could be working for a criminal instead of for you. Trojans, worms, and other malware (malicious software) can ride roughshod over your PC, stealing your logon names, passwords, and bank account numbers, or even hijack it to attack other computers and networks.
GFI's VIPRE Internet Security 2012, though, is well designed. With a fresh new interface, and completely redesigned installation process, VIPRE feels like a new product, but with the same strong defenses