A third-party authentication app (such as Google Authenticator or LastPass) can be used to generate login codes that help us confirm it's you when you log in from a new device for the first time.

Learn more about how you can get your security code if you've turned on two-factor authentication.

If you turned on two-factor authentication, you need to generate and enter a special login code when you log in. Steps to receive a code for two-factor authentication: Open the Facebook app and tap the menu icon. Tap Settings & privacy. Tap …

Two-factor authentication is a security feature that helps protect your Facebook account and password. When two-factor authentication is turned on, you'll be asked to enter a special login code or confirm your login attempt each time someone tries to access your Facebook from a browser or mobile device we don't recognize.

Attempt to login and continue until you need to enter your two-factor authentication code. Click Need another way to authenticate? Click Other Options, then click Get more help. Follow the on-screen instructions.

If you can't access your Facebook account, you can learn how to try and recover it. When you turn on two-factor authentication , you're asked to choose either a security key, text message (SMS) codes or a third-party authentication app as your primary security method.

If you've turned on two-factor authentication, there are several ways you can get your security code or approve your login attempt. Get security codes # You can use a six digit text message (SMS) code sent to your mobile phone.

Learn how you can use an authentication app for two-factor authentication on Facebook.

If you run out of codes or lose them, you can request new ones by clicking Get New Codes. If you're having trouble logging into your account and you have two-factor authentication turned on, learn more about how to troubleshoot login with two-factor authentication .

A third-party authentication app can generate login codes that help us confirm it's you when you log in.