One of the new M5 feature is login using Google Authenticator. Mean, now you can login into your system by using google account. In order to to so, the site must be HTTPS. Google Authenticator do not support without https.
How to sign in via Google Authenticator Login
In your login page, click Sign in with Google button.
You will be direct into Google login page. Fill your google email and click Next.
Fill your password. Click Next.
You will be sign in into your app.
