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email virus

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- An e-mail virus is computer code sent to you as an e-mail note attachment which, if activated, will cause some unexpected and usually harmful effect, such as destroying certain files on your hard disk and causing the attachment to be remailed to everyone in your address book. Although not the only kind of computer virus, e-mail viruses are the best known and undoubtedly cause the greatest loss of time and money overall. The best two defenses against e-mail viruses for the individual user are:

(1) a policy of never opening (for example, double-clicking on) an e-mail attachment unless you know who sent it and what the attachment contains, and
(2) installing and using anti-virus software to scan any attachment before you open it.

Business firewall servers also attempt, but not always successfully, to filter out e-mail that may carry a virus attachment.

The Melissa virus macro virus and the ILOVEYOU virus are among the most famous e-mail viruses. Each of these also spawned copycat variations with different words in the subject line.

Learn more about Antivirus, antispyware management

How to detect malicious insiders by monitoring antivirus log files: Antivirus logs can be a low-cost, low-effort approach for resource-strapped companies to look for threats posed by malicious insiders.
Start with centralized endpoint security management when buying suites: Single vendor centralized management of endpoint security suites is the primary consideration when choosing and buying an endpoint security suite
How to use Excel for security log data analysis: Microsoft Excel can be an inexpensive and effective option for firewall, antivirus and server log analysis.
Three ways to prioritize endpoint security over perimeter defenses: Midmarket organizations should prioritize endpoint security management over perimeter defenses.
How to configure email antivirus scanners to block only when necessary: Taking the shortcut of optimizing your email antivirus scanners to improve performance will eventually compromise your organization's security.

LAST UPDATED:

10 Mar 2009

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More resources from around the web:

-	Michael Cobb explains options for securing the desktop.
-	In this article, Ed Skoudis explores 'The pros and cons of outsourcing antivirus services.'
-	See Lisa Phifer's tip on fighting spyware with unified thread management.

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RELATED CONTENT

	How to detect malicious insiders by monitoring antivirus log files Antivirus logs can be a low-cost, low-effort approach for resource-strapped companies to look for threats posed by malicious insiders.
	Start with centralized endpoint security management when buying suites Single vendor centralized management of endpoint security suites is the primary consideration when choosing and buying an endpoint security suite
	How to use Excel for security log data analysis Microsoft Excel can be an inexpensive and effective option for firewall, antivirus and server log analysis.

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