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CNET

 
Photos: Hacking at Defcon
Monday, Aug 7th, 2006   |  Read the Full Article

For a novel twist on the staid idea of a conference badge, Defcon organizers turned to Joe Grand (alias “Kingpin”). Grand designed a badge that was a circuit board with built-in LEDs and a holder for a battery. It was manufactured by E-Teknet, pictured in this photograph, and was intended to be difficult to forge.

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Joe 'Kingpin' Grand on Hacker ...

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