For years, QR codes sat quietly in the background of consumer tech useful, familiar, but far from exciting. They appeared on ...

Half of restaurants in the US are using scannable QR codes, allowing diners to pull up menus on their phones. See why privacy experts are concerned.

Speed is essential to a well-managed recall. The faster consumers are alerted and understand what to do, the faster contaminated products can be identified, returned, or discarded. That’s why QR codes ...

SAN FRANCISCO — When people enter Teeth, a bar in San Francisco’s Mission neighborhood, the bouncer gives them options. They can order food and drinks at the bar, he says, or they can order via a QR ...