QR codes are everywhere, tantalizing us with hidden information. Of course, a few of them are portals to malware or other uncool business, so it's not a good idea to just scan them all and hope for ...

QR codes–square, dot-matrix variants of the venerable UPC–are becoming an increasingly popular way to share information such as URLs, contact details, GPS coordinates, and calendar events. The idea is ...

QR codes, which can be easily read with a smartphone camera, are used in various areas of daily life, such as as links to websites and for cashless payments. A page has been published that provides an ...