You may also disable all actions for Unauthenticated users in Permissions level - it will hide the detailed content of your site from guests. Other variants include the code changes (not good for the auto-upgrades) or database mass-changing in the table `sys_object_pages` like with the next query (backup this table first):
UPDATE `sys_object_pages` SET `visible_for_levels`='510'
Are there certains steps I need to take in requesting customizing UNA modules? Does anyone offer services to customize modules? Are there more modules coming to market that UNA might give us a hint on in anticipation of some?