For $180 it’s possible to get a microchip, roughly the size of a grain of rice, inserted between one’s thumb and forefinger. In fact, about 4,000 Swedes have done this so far, with a company like Biohax International or its competitors. Designed to “speed up users’ daily routines and make their lives more convenient—accessing their homes, offices and gyms is as easy as swiping their hands against digital readers,” the microchip contains identification information, emergency contact details and more. It could even connect to social media profiles or e-tickets. But for all the hyper-connectivity it offers, concerns center around hacking. Read more about the process, developments and fears at NPR.