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.

Many of you reading this have undoubtedly seen a QR (Quick Response) code by now (the thing pictured to the right), but there's just as much -- if not more -- confusion surrounding them today as there ...

Created in 1994 by Toyota subsidiary 'Denso Wave' to quickly track vehicles and parts through the company's automotive manufacturing process, QR codes are used more commonly today for logging into ...