(Applies to: versions 2.0 and newer of FusionBB)
The Private Info section is used in conjunction with sites that have paid subscriptions for their members.
You can find this section at:
My Fusion >> Your Control Panel >> Private Info
After entering your site password into the box on the Private Info screen, you will have access to the area where you can change your private information such as your address, phone number, etc.
This information will allow the site administrator to properly identify you if problems should occur with your account.