Motion Code to the rescue
At first glance these cards don’t look any different from the ones you carry around today, but they’re hiding some technological wizardry.
The three digits on the back of this card will change, every hour, for three years.
And after they change, the previous three digits are essentially worthless, and that’s a huge blow for criminals.
![Image](http://i.imgur.com/Ue5eRjN.gif)