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Chapter 20. Protecting Your Computer fro... > Dealing with Computer Viruses

Dealing with Computer Viruses

A computer virus actually is similar in many ways to a biological virus. A biological virus invades your body's system and replicates itself; likewise, a computer virus invades your computer's system and also replicates itself—and, in the process, causes untold damage.

Unlike biological viruses, a computer virus is not a living thing. A computer virus is actually a rogue computer program that injects copies of itself into other programs on your computer system. Viruses typically invade executable program and system files—the very heart of your computer system.


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