Internal vulnerability assessments provide a view of your network from the inside, emulating what a hacker would see if they were able to compromise your perimeter defenses or otherwise gain access to your local network. This helps to identify weaknesses in the network behind the firewall, such as systems that need to be patched. Internal vulnerability assessments provide a detailed picture of the information available to potential attackers, including the vulnerabilities that can possibly be exploited in order to gain access to your systems and data.