Facebook's two-factor authentication now works without a phone number
If you have a Facebook profile, it's important to secure it with two-factor authentication so your account isn't hacked. The social network has offered an SMS-based option to do so for a while, but a new feature lets you protect your account without handing over your phone number.
May 24, 2018 ... If you have a Facebook profile, it's important to secure it with ... Just log into your Facebook account, head to Settings > Security and Login, and ... Choose the Authentication app option, and you'll be presented with a QR code.