How Big is the Malware Threat?

Malware is any type of software program that does intentional damage to your computer hardware or software. There are two primary types of malware—computer viruses and spyware. They both can cause big problems, and need to be protected against.

Let’s start by examining the virus threat. It’s not something that only happens to “the other guy.” In fact, back in 2005 the United States Department of Justice estimated that 34% of all computers were infected with computer viruses. Assuming that there were approximately 500 million computers in use worldwide at that time, this means that more than 150 million computers were victims of virus attacks.

Note

Note that we’re discussing viruses and spyware separately. ...

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