If there's a shortage of anything, it's understanding of how QR codes work.

You’ve almost certainly used QR codes before—it’s when you point your phone’s camera at a square barcode to access a menu, a form, or even an app, and then tap on the link that appears. But while most ...

QR codes that were once seen as a convenient shortcut for checking menus or paying bills have increasingly been turned into weapons. Fake delivery texts, counterfeit payment links and malicious codes ...

To join the CNBC Technology Executive Council, go to cnbccouncils.com/tec Almost three-quarters of Americans (73%) scan QR codes without verification, and more than ...