Admin Portal Not Accessible Externally
Stop the enforcement of the Admin Portal being available for external use.
To clarify - In order for Agents to check in to the appliance, the appliance must be externally facing. This causes a massive security risk as when the appliance is externally facing, the Admin portal is also external.
While default passwords can be changed and security can be increased as much as possible, the ability to have agents check in externally, without an admin portal being accessible is a necessity with regards to security.