Joe Grand (@joegrand) is an electrical engineer and hardware hacker. He runs Grand Idea Studio (www.grandideastudio.com) and specializes in the design of consumer and hobbyist embedded systems. He created the electronic badges for DEFCON 14 through 18 and was a co-host of Discovery Channel's Prototype This. Back in the day when he was known as Kingpin, he was a member of the infamous hacker group L0pht Heavy Industries.

Joe Grand (@joegrand) is an electrical engineer and hardware hacker. He runs Grand Idea Studio (www.grandideastudio.com) and specializes in the design of consumer and hobbyist embedded systems. He created the electronic badges for DEFCON 14 through 18 and was a co-host of Discovery Channel's Prototype This. Back in the day when he was known as Kingpin, he was a member of the infamous hacker group L0pht Heavy Industries.