What is a key benefit of using segmentation in a network?

The key benefit of using segmentation in a network is that it improves security by minimizing attack surfaces. When a network is segmented, it is divided into smaller, manageable parts or segments. This approach allows organizations to limit access to sensitive information and critical resources only to those users or devices that require it.

By isolating segments from one another, you create barriers that contain potential threats. For example, if a vulnerability is exploited in one segment, the attacker’s access is restricted, making it harder for them to move laterally across the network. This containment not only protects sensitive data and systems but also enhances the overall security posture of the organization.

In terms of other benefits like application speed, while segmentation can have performance implications depending on network design, it is not primarily aimed at increasing application speed. Similarly, though network design can be less complex in some cases, segmentation may actually add complexity in terms of implementation and management. Lastly, while segmentation could lead to simplified access policies in certain scenarios, the primary and most significant benefit lies in the enhanced security it provides against potential threats.