QR codes, originally developed as two-dimensional matrix barcodes for rapid data acquisition, have undergone significant transformation and expansion in application. Their evolution from simple ...

Software built into the cameras on iPhones and Android phones makes quick work of decoding QR codes. How do you do that on a laptop or desktop computer? I have a friend who calls me occasionally to ...

It's generally best to avoid scanning a QR code of unknown origin, and caution is becoming more important as threats proliferate. Anybody can make a QR code in a matter of seconds using free online ...