I recently installed the Google Authenticator application and was astonished you were able to add 3rd party accounts to it. I used the application to secure my Google Account, my FaceBook Account and this personal blog.
I’m running a WordPress version 4.1 and installed the Two Factor Auth plugin version 4.4. The plugin adds an additional menu item in the left side of the dashboard called “Two Factor Auth”. This section allows you to configure the two factor authentication on your blog.