NORFOLK, Va. - Quick Response (QR) codes are everywhere these days because they're an easy, contactless way to read a menu or download an app. While square barcodes can be convenient, they can also be ...

In some parts of the world, the authorities have encouraged the public to check-in to events and shops they visit by scanning a QR code into a COVID-19 app. It doesn’t grant you the right to enter a ...