Two-factor authentication is a security feature that helps protect your Facebook account in addition to your password. If you set up two-factor authentication, you’ll be asked to enter a special login code or confirm your login attempt each time someone tries accessing Facebook from a computer or mobile device we don’t recognize. You can also get alerts when someone tries logging in from a computer we don’t recognize.
Scroll down to Use two-factor authentication and click Edit.
Choose the authentication method you want to add and follow the on-screen instructions.
Click Enable once you’ve selected and turned on an authentication method.
There are several two-factor authentication methods you can use with your Facebook account when logging in from an unrecognized computer or mobile device. To get started with two-factor authentication, choose either:
You’ll need to have at least one of these set up in order to use two-factor authentication. Once you have added either text message (SMS) codes or a third party authentication app on your account, you’ll also be able to set up some of the optional methods below:
Approving your login attempt from a device we recognize.
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