Your Wallex Exchange Profile has 2 security settings you can edit, your 2 Factor Authenticator, and your Password, if you are logged in and you wish to edit either of them you can simply do so by going to your Personal account dashboard and clicking on your "Settings" section.
In your "Settings" section, you need to click on the security Tab.
Here you will be able to Disable/Enable your 2FA and change your Password
