A 17 year-old who can't see is "one of the most skilled active phreakers alive." He hijacks law enforcement with malicious phone pranks:
Able to commit vast amounts of information to memory instantly, Matt has mastered the intricacies of telephone switching systems, while developing an innate understanding of human psychology and organization culture -- knowledge that he uses to manipulate his patsies and torment his foes.
The holes he's exploiting are in large part the same ones a previous generation of phreaks relied on. He's running variations of the same old scams. Daniels notices this as well. "He is nasty as the day is long because he knows a few tricks from the old days," he says.