Scanning a QR code without your phone requires a little help from Google or a webcam.

With SMS an unsecure method of authentication, Google is eyeing a more robust solution with QR codes.

Here's how to scan a QR code on your iPhone or Android phone. Many phones have QR code scanners, but if yours doesn't, we also recommend some apps to help.

Scanning a QR code without your phone requires a little help from Google or a webcam.