QR codes are used for everything from returning parcels and ordering food at a restaurant to entering theme parks and signing into websites - but what does QR actually stand for?

Bar codes store information along one axis, horizontally. QR codes store information in both vertical and horizontal axes, which allows them to hold significantly more data.

If scanning a physical QR code, ensure the code has not been tampered with, such as with a sticker placed on top of the original code. Do not download an app from a QR code.

Leave the World Behind features a mysterious QR code that has proven to be hard to scan for many. But what does it lead to? Here’s all the information you need about the QR code in Leave the ...

The pandemic made using QR codes ubiquitous, but does our unquestioning willingness to scan them put us at risk of scams? Authorities think so. Wall Street Journal contributor Heidi Mitchell joins ...

Be skeptical about QR codes, warns the FTC In a blog post, the FTC cautioned that cleverly placed QR codes can set people up for a scam.