Hi,
if you use privacy then for each field you can set the default privacy.

If you want that a field is always private then you can set for the field the "visibility for" parameter to special, with this only the owner and administrators can show the field data.

Hi,
this is not possible natively, anyway you can reset password configuration for all members with a simple query (launched with a tool like phpMyAdmin) like:

UPDATE #__jsn_users SET privacy = "" WHERE id > 0

With this all settings will be restored to default value.

NOTE: before make a query like this that affect all rows we recommend to make a backup of the DB table

Thank you very much, that worked!!