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SPAM AND SECURITY

A recipe for secure IM success

Joel Dubin, CISSP, Contributor
07.06.2006
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For small and medium-sized businesses (SMBs) light on staff and tight on budgets, instant messaging (IM) is beneficial for internal and external usage as well as affordable and easy to deploy.

But that external connectivity, if not configured securely, can come with a heavy price. Viruses, Trojans and other malware can piggyback into your networks far easier through IM windows than by e-mail attachments. Links to malicious Web sites can come in through IM messages, and confidential data can, likewise, go out where it shouldn't. Spam sent through IM even has its own name -- Spam over IM (SPIM).

Here are

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some suggestions and best practices for cheaply securing IM in your SMB: An SMB without a dedicated information security staff can have its networking team employ these measures, all of which are routine network security practices they already handle.

About the author: Joel Dubin, CISSP, is an independent computer security consultant in Chicago. He is a Microsoft MVP, specializing in Web and application security and the author of The Little Black Book of Computer Security, available from Amazon.com.

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