If you would like to re-enable two-factor authentication, you'll have to go through the setup process again.
Authy), you may be able to retrieve the codes from Authys servers. You can copy and paste them elsewhere for safe-keeping, or print them using the “Print Codes” button. Similarly, if your particular authenticator app backs up to the cloud (e.g. You’ll see ten backup codes generated.Enter your account password, then click Check Password.Click on the “Generate backup codes” button from the Security section.Backup codes can be generated on both web and mobile devices. If you do not have access to your phone or your phone number has changed, you can generate backup codes to get back into your Tumblr account. We also recommend downloading a copy of your backup codes and storing them somewhere safe, just in case you need them. When prompted, enter the authentication code received via SMS or generated by your authenticator app.Once TFA has been enabled, you’ll use the authentication code in addition to your password to sign into your account: Logging In With Two-factor Authentication Tap the gear icon at the top right, then tap "General settings" (iOS) or "Account settings" (Android).
Follow the steps to receive or generate a code.Select a method for an authentication code, via SMS or an authenticator app.Enable Two-factor Authentication from the Security section.Or head directly to your account settings. Setting Up Two-factor Authentication On the Web A unique, single-use code (sent via text or generated by an authenticator app).Setting up two-factor authentication (TFA) will require a few things: If you can’t sign into your Google Account with your normal 2-Step Verification, you can use a backup code for the second step. Tumblr strongly recommends adding two-factor authentication to your account.