SMS text messages are a weak, dangerous way of providing two-factor authentication codes, as we discussed years ago in “Facebook Shows Why SMS Isn’t Ideal for Two-Factor Authentication” (19 February ...

A QR code will appear. Scan and go: Open the app, tap Add and scan the QR code. The app instantly starts showing a six-digit code that refreshes every 30 seconds. Use that code to log in. That’s it.