 Amazon's Palm Scanning Service, Amazon One Enterprise, is now available to companies. It can also replace fobs and passwords. Is it good that this means you can no longer like just steal someone's key card and use it to get into the building like they do in the spy movies? Or does it mean people will steal your hand? Who's gonna be able to 3D print an image of Sarah's palm so they can use her gym membership? Which sounds ridiculous, but there's always gonna be something. If somebody can game the system, they'll try.