Add Yahoo as a preferred source to see more of our stories on Google. QR codes are visual patterns that store data smartphones can read. AP Photo/Vincent Yu Among the many changes brought about by the ...

QR codes–square, dot-matrix variants of the venerable UPC–are becoming an increasingly popular way to share information such as URLs, contact details, GPS coordinates, and calendar events. The idea is ...

Back in 2013, David Geer laid out the dangers of QR codes for security, explaining how a malicious QR — Quick Response — code can contain a link to a website embedded with malware. The Web link then ...

QR, or quick response, codes have been the "it" advertising vehicle of 2011 with good reason. Their relatively small footprint and wacky design make them easy to notice and implement. Found on ...

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.