When people talk about computer and network security, they almost always mention computer viruses sooner or later. Even people who do not often use computers have heard about viruses because of all the news hype that surrounds them. In this chapter, we discuss viruses and other malicious code (collectively referred to as malware, bad software), including where they come from, what they do, how you can protect your computer against them, and how to get rid of them if you do get infected. |