A QR Code scan is like a raised hand in a crowded room. It's voluntary, visible, and tells you exactly who's interested. Compare that to website cookies, which are more like secretly following someone ...

(TNS) — During the COVID-19 pandemic, people have become accustomed to using their smartphone cameras to scan small black-and-white square bar codes, allowing them instantly to do everything from ...

QR codes are used just about everywhere now, for checking into venues, ordering food, or just plain old advertising. But what about data storage? It’s hardly efficient, but if you want to store your ...