QR codes have developed from some scams , because now most people know about the scams, most people need QR codes like adults, or its just for work but some people make a fake QR code and that scams you it takes you to a fake website and you might lose some of your hard earned money. Did you know that QR cods started in 1994 ????
anyway,a possible Problem is that you reach a fake site from a QR code and you lose $100 imagine that????
have a look at mine 