1. Click the "Avatar" button on the top right to enter your Personal Center
2. Download a Google Authenticator For IOS users, log in to the App Store and search for "Authenticator" to download. For Android users, login the application store of your choice or use your mobile browser to search for "Google Authenticator" to download.
3. Add the key in Google Authenticator and create a backup.
4. Enter the mobile verification code and Google Authenticator code.