Your home and office computers are probably protected by antivirus programs and firewalls. But what about your new cell phone? The latest "smart phones" let you read e-mail, open attachments, and download games and other programs. Just imagine if a virus slipped through that made toll calls to 1-900 numbers in the middle of the night. With phone spam already here (see "Spam to Go," TR April 2004), industry experts suspect phone viruses are bound to come calling soon.

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