How to enable/disable two-factor authentication (2FA)?

To enable/disable two-factor authentication (2FA), you have to access to AMS first 

Select 2FA authentication on the Account icon

1. Enable 2FA

1.1. Click to enable the 2FA

1.2. Enter your password 

1.3. Scan to enable 2FA

2. Disable 2FA

2.1. Click the button

2.2. Enter the password 2.3. It's completely disabled.