QR codes aren’t new technology. They’ve actually been around for 30 years, but their adoption has skyrocketed in recent years.

QR codes are handy ways to connect you to information, access tickets, ... (A geeky aside: the 1-1-3-1-1 layout of these finder patterns was chosen because it’s not often used in printed media.) ...

QR codes are designed with alignment and scaling features, not to mention checksums and significant redundancy. They have to be, because you’re taking photos of them with your potato-camera w… ...

QR codes, the square bar codes that can be scanned and read by smartphones, are seemingly used everywhere: to board flights, enter concerts and look at restaurant menus. But scammers trying to ...