HELP FILE

LastPass Authenticator

LastPass Authenticator is a multifactor app for Android, iOS, and Windows mobile devices. It supports 3 ways to log in:

  • Time based 6-digit codes
  • One-tap push notifications
  • SMS 6-digit codes

LastPass Authenticator is also TOTP compliant, meaning it’s compatible with all apps and websites that support Google Authenticator. That means you can conveniently manage Multifactor Authentication for multiple services, all from LastPass Authenticator.

To set up LastPass Authenticator, it is required that you follow all steps in Enable Multifactor Authentication before proceeding.

Please note that if you have more than 1 Multifactor Authentication option enabled for your account, you must select your desired default authentication option from the drop-down menu at the bottom of your Multifactor Options window in order to be prompted to authenticate with your preferred option when logging in to LastPass.

Topics in this article:

Set up and configure

Use the LastPass Authenticator

Disable authentication for a new or lost device

Enable and Restore using Cloud Backup

Set up and configure

Note: Please follow all steps in Enable Multifactor Authentication before proceeding.

Once you have clicked the Edit icon for the LastPass Authenticator, you can then finish the set-up process as follows:

  1. For the "Enabled" option, select Yes from the drop-down menu.
  2. For the "Permit Offline Access" option, use the drop-down menu to choose from the following:
    • Select Allow if you wish to allow access to LastPass even when you are offline. This will store an encrypted Vault locally so you can log in without using Multifactor Authentication in case of a connectivity issue.
    • Select Disallow to prevent offline access, which requires the use of Multifactor Authentication and to be connected to the internet when using LastPass.
    • Note: If this option is selected and you are not connected to the internet and/or https://lastpass.com is not available, you will be unable to access your Vault. Learn more about offline access.

  3. When finished, click Update.

  1. Enter your Master Password, and click Continue.
  2. When prompted, click Enroll.
  3. When a new web browser window or tab appears, click Set up mobile app.
  4. Install the LastPass Authenticator on your mobile device for iOS, Android (supported on Android OS 4.0.3 (Ice Cream Sandwich) or later), or Windows.
  5. On your web browser window, click Next to proceed with the enrollment, then open the LastPass Authenticator app on your mobile device.

  1. If you have already used LastPass on your phone for a different account or application, proceed to the next step. Otherwise, do the following:
    1. Tap Add new account.
    2. Tap Scan barcode.
    3. Using your mobile device's camera, scan the barcode displayed on your web browser window.
  2. If LastPass has been used for a different account and/or application, do the following:
    1. Tap the Add icon on the bottom of your device screen.
    2. Tap Scan Barcode.
    3. Using your mobile device's camera, scan the barcode displayed on your web browser window.
  3. From your computer, click Set up text message.
  4. Enter your mobile phone number and click Next.
  5. A text message is sent to your mobile device containing a verification code. Enter the code into your web browser, then click Finish text setup.
  6. Click Activate, then click Done.
  7. In your Vault, click OK on the confirmation messages.

Use the LastPass Authenticator

  1. Open the LastPass Authenticator app on your mobile device.
  2. On your desktop web browser, log in to LastPass.
  3. You can verify your login in the following ways:
    • On your mobile device, tap Approve in the Mobile Authenticator app to verify your login, which automatically logs you in to your LastPass account on your web browser. If desired, check the box to enable the option, "Trust this device for 30 days" and provide a device name, then click Authenticate. Learn more about managing your trusted devices.
    • On your web browser, enter the 6-digit code displayed in the mobile app. If desired, check the box to enable the option, "Trust this computer for 30 days" and provide a computer name, then click Authenticate. Learn more about managing your trusted devices.
    • On your web browser, click Send SMS passcodes to have an SMS message containing a verification code sent to your mobile device. Once received, enter the code in your web browser, (if desired, check the box to enable the option, "Trust this computer for 30 days" and provide a computer name) and click Authenticate. Learn more about managing your trusted devices.

Disable authentication for a new or lost device

If your phone number has changed or mobile device used for authentication is lost, you can click I've lost my device on the Multifactor Authentication window. Once redirected, you can enter your LastPass email address and click Send Email to be sent an email with a set of instructions on how to disable Multifactor Authentication. If you do not receive an email, you may have a secondary security email enabled where the email was sent instead, and/or check your spam/junk email filters. If you are an Enterprise user, contact your LastPass Administrator to disable it for you.

Enable and Restore using Cloud Backup

With LastPass Authenticator’s Cloud Backup feature, you can restore your multifactor tokens if you lose or upgrade your mobile device. Combined with our unique, one-tap verification experience, LastPass Authenticator gives you all the security you need from your LastPass Authenticator app, without any of the frustration.

Enable cloud backup

Note: The Cloud Backup feature is supported on iOS and Android devices only.

  1. Open the LastPass Authenticator app on your mobile device.
  2. Tap the Options icon in the toolbar.
  3. Toggle to enable the option, "Backup to LastPass".
    • If you have not yet installed the LastPass Password Manager mobile app (for iOS or Android) installed, you will be prompted to download and log in. Once logged in, switch back to the LastPass Authenticator app, toggle the option to enable "Backup to LastPass" again, then the backup will begin and display a confirmation message at the bottom of the screen once it is complete.
    • If you already have the LastPass Password Manager mobile app, you are prompted to confirm your email address, then the backup will begin and display a confirmation message at the bottom of the screen once it is complete.
  4. Once enabled, you can tap the Options icon in the toolbar of the LastPass Authenticator app and tap Backup Now anytime you want to create a backup.

Restore from Cloud Backup

Note: Push notifications will be transferred to the device on which you restore your database as they can only be enabled on one mobile device at a time.

  1. Install both the LastPass Password Manager (for iOS or Android)  and LastPass Authenticator (for iOS or Android) apps on your mobile device.
  2. Open the LastPass Authenticator app, then tap Restore from backup.
    • If you are already logged in to the LastPass Password Manager app, tap to confirm your account email address.
    • If you are not logged in, the LastPass Manager app will open and prompt you to log in. Once logged in, your account(s) in the LastPass Authenticator app will be restored.