The Camera app on your Windows computer lets you easily scan QR codes using your PC's webcam. If you need to scan a QR code from an image, you can use the Snipping Tool app or a QR code scanning ...

You don't need your phone to open a QR code. You probably already know how to scan a QR code with your phone. It's simple enough: just open the camera app, point your phone at the code, and tap ...

QR codes are a close cousin of the bar codes on product packaging that cashiers scan with infrared scanners to let the checkout computer know what products are being purchased.

They’re as easy as scanning from our camera or an app and then clicking the link to what we need. But what if scammers and hackers start putting fake QR codes out to the public?

Since QR codes are essentially web links, approach them with the same caution you exercise when you see a web link in an email or text message.

Here’s what happens when you scan one of those ubiquitous two-dimensional black-and-white patterns.