![]() ![]() ![]() E-mail viruses: An e-mail virus travels as an attachment to e-mail messages, and usually replicates itself by automatically mailing itself to dozens of people in the victim's e-mail address book.Each time the spreadsheet program runs, the virus runs, too, and it has the chance to reproduce (by attaching to other programs) or wreak havoc. For example, a virus might attach itself to a program such as a spreadsheet program. Viruses: A virus is a small piece of software that piggybacks on real programs. ![]()
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