What is primarily addressed by the Internal Network layer in the Defense in Depth strategy?

The Internal Network layer in the Defense in Depth strategy primarily focuses on managing network traffic. This layer is crucial because it implements controls that protect data as it moves throughout the organization’s internal network. By managing network traffic, organizations can monitor and restrict access to sensitive data, segment the network to limit user access based on roles, and ensure that only authorized devices and users can communicate within the network.

This management of traffic is essential for detecting and preventing unauthorized access, ensuring that potential threats are contained and do not spread across different parts of the network. While aspects such as protecting data from breaches, monitoring interactions, and securing application servers are important in the overall cybersecurity framework, the core function of the Internal Network layer focuses on how data flows through the network and manages that flow as a means of maintaining security.