Who would’ve thought all it took is an Arduino, a standard magnetic stripe reader, a display and a little code to be able to read the data stored on magnetic stripe cards such as your VISA card. I can’t begin to imagine how this DIY provided by Instructables could be abused. No one is doing fraudulent things with an Arduino LED hat and the worst that could happen with an Arduino KITT in your car is people calling you “The Hoff.”
Turn this card reader portable and you’ve got yourself an identification theft device that’ll fit in your pocket. The digital age is a dangerous time, a dog eat dog world. Do your part and make it as hectic as possible for the rest of mankind.