What does network segmentation achieve in cybersecurity?

Network segmentation is a crucial strategy in cybersecurity that involves dividing a computer network into smaller, isolated sub-networks or segments. This practice significantly enhances security by implementing boundaries that limit the lateral movement of threats within the network.

When a cyber attack occurs, network segmentation can effectively contain the threat to the affected segment, preventing it from spreading to other areas of the network. For example, if a malicious actor gains access to one segment, they would face additional barriers when attempting to access or exploit other segments, which may hold more sensitive or critical data. This containment strategy not only helps in minimizing potential damage but also simplifies incident response, allowing security teams to focus their efforts on the specific segment that has been compromised.

By limiting the spread of attacks, organizations can safeguard their most sensitive information and maintain overall network integrity, making segmentation a fundamental aspect of a robust cybersecurity posture.