What is 2FA？
Two-factor authentication (2FA, for short) refers to two-step verification：Provide additional security for your account.When you login, except username and password，you will also need to enter a six-digit code.（No configuration by default）
The configuration method is as follows:
1.You need to install the 2-step verification tool on your phone first,Such as：Google or Microsoft Authenticator
2.Click on the settings in the upper right corner to enter the Account Settings.
3.Find 2FA and enable
4.Use Google Authenticator Scan above QR code will have ，Real- time changing 6 digit code，enter it into the below options.
5.After inputting correctly, the following multiple recovery codes will be given.Copy these one-time recovery codes into one text for saving,In case of mobile phone loss or deletion of software, you cannot view the 6-digit code and other emergency situations.。
If you have recorded the above information, click Enable two factor authentication
Important reminder：If you accidentally did not save the recovery code when doing step 5，we suggest you turn this feature off and reconfigure it.
（The above recovery codes are all one-time，It can be used to log in to an account or to disable the function in an emergency）
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