Avoid downloading third-party apps to scan QR codes.

As smartphones have become more and more ubiquitous, so have QR codes. These maze-looking squares are a type of matrix bar code that contains data — usually, QR codes point to a website or open a ...

Nowadays, you can find QR (quick-response) codes on everything. These odd-looking, black-and-white, pixelated designs were originally used by the automotive industry, but today they are most often ...

While they may not be the all-in-one solution some had envisioned, QR codes are still very popular. It’s easy to understand why, too — just point your camera or scanner at a QR code, and you’re ...