[Roger Ver] attempted to use a QR code containing a private key to give away some cryptocurrency on TV, but the code was blurred out by the broadcaster. Not ones to give up easily, [Michael] and ...

There are a number of solutions available that incorporate quick-response (QR) codes into purchase transactions. QR codes can be used to store all sorts of data from numbers, text and even URLs.

Retailers are now looking to own that relationship with the customer. There are a number of solutions available that incorporate quick-response (QR) codes into purchase transactions. QR codes can be ...