Chapter 15. Viruses and Other Malicious Software

When people talk about computer and network security, they almost always mention computer viruses sooner or later. Even people who don’t use computers very often have heard about viruses because of all the news hype that surrounds them. In this chapter, we will discuss viruses and other malicious code, 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.

What Is a Virus?

The term “computer virus” tends to get used for any malicious code created with the intention of harming a computer or slowing network traffic, but a virus is actually a very specific type of program. The definition of a computer virus is a ...

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