This is an advanced networking configuration not related to the device itself. Securing ports and backdoor access would need to be manually configured and tested between Firewalls and routers, and would likely be the same process used to allow another system to be blocked, access, and/or filtered. If needed, you can manually assign a specific IP address, Gateway, and DNS Server to your WD My Book Live Personal Cloud Storage within the Dashboard configuration page so it can better suit your needs.
Please note this is not supported by Western Digital.
