10.1. Viruses and Malware

We've all been battling malicious, invasive software since we bought our first computers. This software can go by any number of names—virus, malware, and so on—but if you aren't aware of their presence, these uninvited intruders may damage the data on your hard disk, destroy your operating system, and possibly spread to other systems.

10.1.1. Critical Information

You want to make certain that your systems, and the data within them, are kept as secure as possible. The security prevents others from changing the data, destroying it, or inadvertently harming it.

Viruses can be classified as polymorphic, stealth, retroviruses, multipartite, armored, companion, phage, and macro viruses. Each type of virus has a different ...

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