Hi,
The idea basically is adding a security restriction parameter while performing export datapump operations where the generated dump file can only be imported to the source database (tight by the unique database ID (DB ID) or machine (hostname)). This will add extra security measure layer especially if a dump file for a sensitive data was misplaced by mistake. This is useful with the in-place Unified Auditing for export/import datapump operations to track export,import activities within the database.
I understand that you can encrypt export datapump dump file but this is will require "Advanced Security Option".
What Do You Think ?