Adventure technologist and biohacker Amal Graafstra has always been interested in technology. Amal had two small RFID transponders implanted, one into each hand, and he uses them to open doors, start his vehicles, and log into his computer. Since implanting himself, he’s written a book called RFID Toys, become a TEDx speaker, appeared on a multitude of television programs, and been the subject of various documentaries. His company, Dangerous Things developed the world’s first and only NFC compliant implantable transponder.