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Use Google Authenticator for LastPass Two Step Authentication

In a previous article we showed you how to set up Two Factor Authentication for LastPass using a printable number and letter matrix grid. This time around we’ll use a different method that requires a smartphone. Once enabled, nobody will be able to ever access your LastPass account unless they have your username, password, and phone; without all three, the account cannot be accessed…even by you.

The key to the smartphone method is Google Authenticator. Google Authenticator is a groovy app that provides Two Factor Authentication for multiple online services, including Dropbox. But do note that Google Authenticator is not compatible with the printable grid authentication method, so you have to use one or the other.

You’ll need the Google Authenticator app and an iOS  or Android phone.

Login to your LastPass account and click the Settings button at the left side of the main control panel.

lastpass settings

In the Settings window that comes up, click the Google Authenticator tab. Then bust out either your iPhone or Android phone and load up the Google Authenticator app.

lastpass google authenticator security code

Select to add a new account and then Scan Barcode.

google authenticator scan barcode

Use the camera to scan the QR code in the middle of the LastPass web page. Once complete Google Authenticator will automatically sync up with your LastPass account. It’s pretty groovy how it works, the information needed is just stored in the app.

scanning qr code

Once the QR code has been successfully scanned it will display a code on the Android phone. Disregard the phone for a brief moment and back on the LastPass setting page change the drop down menu to Enabled for “Google Authenticator Authentication”.

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enable two-factor

Now look at the code on the phone and get ready to type it into the website.

refreshing automated code

Type the code exactly as it is shown on your phone when prompted by the LastPass web page. Note that the code changes every minute so type it quickly. If you miss it just type in the new one it has changed to. Once you have it entered, click OK and then click the Update button to confirm and save changes.

enter two factor code

Now whenever you log in to LastPass, it will work like normal. But after you enter your username and password you’ll have the extra secure step of opening your Google Authenticator app on your phone and typing in the code onto the website.

lastpass 2 step login with google authenticator

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3 Responses to Use Google Authenticator for LastPass Two Step Authentication

  1. Danilo September 2, 2012 at 6:36 pm #

    What if someone steals my phone?

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