A startup called Lisnr wants to replace NFC and QR codes with a new technology that sends data over audio -- a communication protocol it's calling Smart Tone. The technology it's invented can be ...

WhatsApp today announced a new and quicker to transfer chat from your old phone to the new phone through a QR-code-based method.

Given that many businesses' QR code mini-programs are provided by third-party technology companies, which also obtain consumer personal data through QR code scanning, consumers also face risks of ...

QR codes store information in both vertical and horizontal axes, which allows them to hold significantly more data. That extra amount of data is what makes QR codes so versatile.