Another unnecessary cost: employees who call a company-paid 800 number to retrieve voice mail from their desktop phone instead of using free long distance on a cell phone.

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Using court orders, the FBI controls the system from a remote location to monitor and retrieve e-mail messages of criminal suspects.

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The same device could also play video that is streamed over an airport network and could, in theory, surf the Web and retrieve e-mail easily, with all the heavy lifting done by the Powermac or iMac it's connected to.

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School officials determined the virus was similar to Onel de Guzman's thesis, called E:mail Password Sender Trojan, which was designed to obtain Windows passwords, and retrieve Internet accounts from victims' computers.

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