Describe "network segmentation."

Network segmentation involves dividing a computer network into smaller, isolated segments or sub-networks. This approach enhances security by limiting access to sensitive data and systems, as each segment can have its own security controls and policies. When a breach occurs in one segment, it is less likely to affect others, thereby containing potential damage. Additionally, segmentation can improve network performance by reducing congestion and enhancing the efficiency of traffic management.

The practice of segmenting networks is particularly useful in organizations where different departments handle varying levels of sensitive information, allowing for tailored security measures. For instance, financial records may be kept in a segment with strict access controls, while guest access might be limited to a separate segment that does not interact with the core business network.

Implementing network segmentation can also assist in regulatory compliance by ensuring that sensitive information is stored and transmitted in a secure manner, adhering to industry standards. Overall, this strategy plays a crucial role in strengthening the security posture of an organization.