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, ...
QR codes are practical and easy to use. Aim the phone's camera, click, and straight to a website you go. But experts warn they also have a dark side.
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, ...
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