Walk past a shiny sticker on a wall, scan it quickly, and boom — a problem starts growing quietly inside a phone. QR codes ...

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 ...

Your smartphone is full of surprises. There's an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them.

A Quick Response code, or QR code, is an easy way to access information on your mobile device. However, a scam that uses the codes at parking meters is making people become more vigilant before they ...