Among the reasons are fears about what is going on with the body, but there are other obvious reasons too. They don’t have to know and track your buying habits and have all your data on your previous purchases. It prevents someone else from stealing your data, selling your data and making profit, so that you become the beneficiary of your data. You should own your data, it should be a basic human right,” he argues. Österlund says you can drop your key-chain and your plastic cards, but the coolest features of biochip implants are yet to come.