HELP FILE

Step #3: Set up a backup authentication method for the LastPass Authenticator app

    To finalize the setup process for the LastPass Authenticator app, set up a backup authentication method so it can be used in case your are unable to authenticate using your primary method (e.g., push notification).

    Below, you can choose from entering a phone number for SMS passcode (text message) or phone call, or setting up YubiKey for codes generated via hardware token.

    Restriction: If you have a LastPass Teams or LastPass Business account, the ability to perform these actions may be limited or prohibited due to policies enabled by your LastPass admin.

    Phone Number (Text or Call)

    Enter a phone number for sending security codes via text message (SMS passcode) or receiving a phone call (Call Me feature) as your backup method.

    Attention: The phone number you enter in the instructions below is not the phone number used for SMS account recovery. The phone number for SMS account recovery is entered in the General tab of your Account Settings, and is used for recovering your master password in case it is ever forgotten.
    To set up a phone number as your backup authentication method, do the following:
    1. After the enrollment process for the LastPass Authenticator app, select Set up text message.
    2. Enter your phone number (starting with country code), then select Next.

      Result: A text message is sent to your phone with a 6-digit code.

    3. Enter the 6-digit code sent to your phone, then select Finish text setup.

      Verify phone number with code

    4. Select Activate.

      Finalize setup process for text/call backup

    5. Select OK > OK.
    6. Close the Account Settings window.

      Result: You have successfully set a phone number for using text message/call as a backup authentication method for the LastPass Authenticator app.

    7. Log out of LastPass (select your email address in the upper-right corner of your vault, then select Log Out).
    Setup for the LastPass Authenticator app is complete! You have successfully set up the LastPass Authenticator app as your multifactor option, and also set up a backup authentication method.

    YubiKey

    Set up YubiKey to enter a code generated by your YubiKey hardware token as a backup authentication method for the LastPass Authenticator app.

    Notice: The instructions below are for setting up YubiKey as a backup authentication method for the LastPass Authenticator app. If you want to set up YubiKey as your primary multifactor authentication option, please see How do I enable YubiKey in LastPass?
    To set up YubiKey as your backup authentication method (for the LastPass Authenticator app), do the following:
    1. After the enrollment process for the LastPass Authenticator app, select Set up YubiKey.
    2. Insert your YubiKey into the USB port.
    3. When the YubiKey's touch sensor shines a steady light, hold your fingertip on the touch sensor to scan your fingerprint.

      Result: A code is generated and entered into the field automatically.

    4. Select Finish YubiKey setup.

      Set up YubiKey for the LastPass Authenticator

    5. Select Activate.

      Finish setup process with YubiKey backup

    6. Select OK > OK.
    7. Close the Account Settings window.

      Result: You have successfully set up YubiKey as your backup authentication method for the LastPass Authenticator app.

    8. Log out of LastPass (select your email address in the upper-right corner of your vault, then select Log Out).
    You have successfully set up the LastPass Authenticator app as your multifactor option, and also set up a backup authentication method.