Tables created from your XFDs have a schema or owner. By default, this owner is the authorization ID PUBLIC. Tables or other database objects owned by PUBLIC are accessible to any authorized database user. This includes users initially created, as well as any additional users added in the future.
If you don't want a table owner to be listed publicly in applications like Microsoft Access, specify the following option when loading the table with mfdbcutil:
-o " "
and set the IGNORE_OWNER variable to 1 (on, true, yes) in your configuration file. (Note that there is a blank space between the parentheses.) However, you will usually want to display owner and tablename.