QR codes are pixelated black and white squares that perform magic when we point the cameras on our phones at them—but what’s going on that makes this little spell possible? QR codes are akin to the ...

Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other device.

Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other device.

Forbes contributors publish independent expert analyses and insights. David Birch is a London-based advisor on digital financial services. Feb 28, 2024, 01:41pm EST Mar 12, 2024, 09:02am EDT ...