I mentioned the Firewall blade earlier, but we skipped it so you could learn something about it once you are familiar with the service. When you click on the Firewall blade, you will see a screen that allows you to specify which IP address can access your instance:
The important thing here is the ability to block other Azure services from accessing your data—this can be helpful if you have requirements that force you to disallow anyone from reading any information stored in ADLS. You can find out more about security features in the link provided in the Further reading section.
