[Philipp]

Bates, an 18-year-old who will start his freshman year at Oklahoma University this month, knew it was uncharacteristic of Trey to flood him with winking faces--a popular "emoticon" used to color text-based IM conversations. His suspicions grew when the alias "george.w.bush@whitehouse.gov" suddenly flashed on his screen along with an invitation to accept an attached file called "choke.exe." Unlike his friend, who obviously had been bitten by a virus, Bates knew better than to accept it.

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