QR codes, those goofy black-and-white arrangements of digital information, could help secure bank notes. Scientists just showed that they could print an invisible QR code made of a high-tech ink ...

QR codes are popping up all around the city and more often than not they're being used as marketing devices for local businesses hoping to add an extra layer of information and value for their ...

You may have noticed the proliferation of QR codes in your mailbox in the last few years. We certainly are moving toward a digital world, and QR codes are part of that evolution. A QR code is a ...