What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...

A QR code on a flyer caught the attention of viewers recently, with many wondering if the code was real or fake. The flyer ...

Massachusetts on Monday launched an online website where residents can obtain a QR code to show proof that they have been vaccinated against COVID-19. The QR code can be scanned at various ...