Defcon is off to an incredibly slow start; It’s already 2 hours behind because of safety inspections (not surprising). I wouldn’t be too annoyed, but the first talk of the day is Joe Grand explaining the LED badges. They apparently made 6,055 of these LED badges. There is a PIC10F202 on the back and a switch to change between different flash modes. He even included solder pads to reprogram it. They’re encouraging people to hack the badges and come up with something new. More pictures after the break.