Restricting attributes in export
Yes, you can do this in ACS
You create roles that restrict what attributes you want the ACS to see. We generally assign the roles to a dummy user to validate
Assign it to the Subscriber as outlined in the ACS documentation. here is a snippet
11.Click the Subscriber Details tab to add destinations, filters, and roles, and to select the transfer file format.
12.Click the Detail+ button to display the Subscriber Detail dialog box.
13.Click the Down Arrow to select values for the Destinations, Filters, and Rolesfields from the lists of options available for this subscriber. Roles are applied to further fine-tune or define the data extraction.
Hope this helps