How can network segmentation improve security?

Network segmentation significantly enhances security primarily by dividing the larger network into smaller, more manageable segments. This division controls and limits the lateral movement of potential attackers within the network.

When a breach occurs, attackers often seek to move laterally across the network to access sensitive data or systems. By segmenting the network, you create barriers that restrict an attacker's ability to navigate freely. Each segment can have its own set of security controls and access permissions, allowing for tighter control over who can access specific resources.

For example, if one segment of the network is compromised, segmentation can help ensure that the attacker cannot easily move to other parts of the network where more critical data is stored. This containment strategy not only mitigates the potential impact of a security incident but also aids in faster detection and response, as the breach would be limited to a smaller area of the infrastructure.

In contrast, options that suggest increased bandwidth or connecting multiple networks into a single domain do not directly relate to improving security. Similarly, while user authentication processes are important for security, simplifying them could potentially introduce vulnerabilities that could be exploited by attackers. Thus, the core benefit of network segmentation lies in its ability to control access and minimize risk in the event of a security breach.