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'''Anti-virus software''' protects a [[computer]] from viruses, Trojan horses, worms and other forms of [[malicious software]] (malware).  Antivirus software protects a computer by searching its hard disk for programs and comparing the findings against a known set of malicious software; and, if suspicious files are found, deleting or quarantining the viruses.<ref>[http://onguardonline.gov/glossary.html OnGuard Online: Glossary] [[OnGuardOnline|OnGuardOnline.gov]]</ref>  Antivirus software is necessary for both [[Microsoft Windows|Windows]] and [[Apple Inc.|Mac]] users.<ref>http://blog.intego.com/2008/12/04/do-you-need-an-antivirus-for-your-mac-definitely-yes/</ref>  Two leading [[Internet]] security companies, [[Intego]] and [[Symantec]], both sell duel protection antivirus programs, which protects [[Mac OS X]] and Windows from all known viruses.<ref>http://www.macworld.com/article/135900/2008/10/antivirus.html</ref>

'''Anti-virus software''' protects a [[computer]] from viruses, Trojan horses, worms and other forms of [[malicious software]] (malware).  Antivirus software protects a computer by searching its hard disk for programs and comparing the findings against a known set of malicious software; and, if suspicious files are found, deleting or quarantining the viruses.<ref>[http://onguardonline.gov/glossary.html OnGuard Online: Glossary] [[OnGuardOnline|OnGuardOnline.gov]]</ref>  Antivirus software is necessary for both [[Microsoft Windows|Windows]] and [[Apple Inc.|Mac]] users.<ref>http://blog.intego.com/2008/12/04/do-you-need-an-antivirus-for-your-mac-definitely-yes/</ref>  Two leading [[Internet]] security companies, [[Intego]] and [[Symantec]], both sell duel protection antivirus programs, which protects [[Mac OS X]] and Windows from all known viruses.<ref>http://www.macworld.com/article/135900/2008/10/antivirus.html</ref>

==References==

==References==