Google Authenticator is a multifactor app for mobile devices. It generates timed codes used during the 2-step verification process. To use Google Authenticator, install the Google Authenticator application on your mobile device. Google officially supports Android, iOS (iPhone, iPod Touch, or iPad), and BlackBerry devices. You can follow the instructions here to install Google Authenticator onto these devices. For other devices and options, see below:
- If you would like to run Google Authenticator on an Android device that doesn’t have access to Google Play Store, you can install from here.
- If you would like to run Google Authenticator on your Windows Phone, Jamie Garside has developed Authenticator.
- If you would like to run Google Authenticator on your webOS device, Greg Stoll has developed GAuth.
- If you would like to run Google Authenticator on your Symbian device, or any device that supports Java ME, Rafael Beck has developed lwuitgauthj2me
- Alternatively, Rodrigo A. Diaz Leven has developed gauthj2me.
Once installed, follow the steps below to set Google Authenticator up with LastPass:
- Once you have the Google Authenticator application running on your mobile device, login to your LastPass Vault and go to Settings > Multifactor Options > Google Authenticator.
- Click on “View” for the barcode.
- On your mobile device, open the Google Authenticator app.
- Tap the + icon or “Add an Account” option (depending on your mobile device)
- Select Scan Barcode.
- Scan the Barcode provided from LastPass.
- A new entry for LastPass will appear in the Google Authenticator App
- In LastPass, toggle “Enabled” to “Yes”
- Click Update
- You will be asked for your Google Authenticator code. Use your Google Authenticator App to fill in the required code.
Using Google Authenticator to Login
After your LastPass account is registered within the Google Authenticator app, the next time you login to LastPass on an untrusted device, you will receive the Google Authentication dialog:
Go to your Google Authenticator App and input the current authentication code you see in the app into this dialog. If the code expires before you have a chance to authenticate, simply use the next code that appears in the app.
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