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 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 ...

A Quick Response, or QR, code is a square barcode designed to hold much more information that a standard barcode. Since most mobile phones now come equipped with cameras, which is all a QR code ...