Two-factor authentication codes could get replaced by physical objects, study finds

What if you could use a charm bracelet or a water bottle as your secret password? Researchers at the Florida International University and Bloomberg created a camera-based remote authentication solution to help you do just that on any mobile device.
The solution is called Pixie. To use it, you first pick a secret physical object like a book or a paperweight and take photos of it with a mobile device, creating reference photos. Then, each time you want to use two-factor authentication, you just ho