Understanding QR Codes and How to Use Them (opens in new tab)

Those small square patterns of black and white dots have quietly become part of everyday life. You see them on restaurant tables, product packaging, posters, payment terminals, and business cards. QR codes, once a niche novelty, are now everywhere, yet many people use them without really understanding what they are or how to use them safely and effectively. This article explains what QR codes are, how to use them, and a few important things to keep in mind, so you can take advantage of this h...