What is the primary purpose of network segmentation?

The primary purpose of network segmentation is to isolate and control different parts of a network. This practice enhances security by creating boundaries between different segments, which can limit an attacker's ability to access sensitive data and systems. By segmenting a network, organizations can restrict the flow of traffic to only what is necessary for that segment to function, thus minimizing the potential impact of a security breach.

Additionally, network segmentation allows for more tailored security policies to be applied to each segment based on the specific needs and risks associated with the systems contained within. For example, a segment containing sensitive data may have stricter access controls and monitoring compared to a segment used for public-facing services. This strategic isolation aids in better management of network resources and can improve overall network performance as well, but the primary emphasis is on control and security.