hi,
as you can read here https://codex.buddypress.org/releases/version-1-6/ in the Profile Field section, since BP 1.6, each user can set his profile fields to different visibility option from within his profile option admin.
You can also modify the template profile loop from a child theme to avoid site wide not registered users to see profiles unless they are logged in, by adding the contionnal tag if bp_user_is_logged_in.
Add this just after the first line containing do_action and don’t forgot endif at the end of the page, just before the last do_action.
