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Chapter 15. Enhancing Outlook Email Secu... > Guarding Against Email Viruses

Guarding Against Email Viruses

Until just a few years ago, the primary method that computer viruses used to propagate themselves was the floppy disk. A user with an infected machine would copy some files to a floppy, and the virus would surreptitiously add itself to the disk. When the recipient inserted the disk, the virus copy would come to life and infect yet another computer.

When the Internet became a big deal, viruses adapted and began propagating either via malicious websites or via infected program files downloaded to users’ machines.


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