1. Log into your account on BitMart website (www.bitmart.com).
2. You can find Security in the dropdown menu under the email address.
3. Click Security, and you can see Two-Factor Authentication.
4. Click ENABLE on the row of the phone and follow the instructions below.
5. Click ENABLE on the row of Google Authenticator and follow the instructions below.
If you have any issue regarding 2FA (lost your phone or a new phone), please check out this article: https://support.bitmart.com/hc/en-us/articles/360001861413-Issues-regarding-Google-2FA