What is the relationship between zero trust and micro-segmentation?

Zero trust principles and micro-segmentation are closely related concepts in network design. Zero trust is a security framework that assumes that threats could exist both inside and outside a network. It emphasizes not trusting any entity by default, whether inside or outside the network perimeter. Micro-segmentation, on the other hand, involves dividing a network into smaller segments to isolate and secure critical assets and resources.

The relationship between zero trust principles and micro-segmentation lies in how they work together to enhance network security. Micro-segmentation allows organizations to implement zero trust policies more effectively by dividing the network into zones and restricting communication between them based on policies and rules. This approach reduces the attack surface, limits lateral movement of threats, and improves overall security posture by enforcing strict access controls within the network.

In summary, zero trust principles provide the overarching security framework that guides the implementation of security measures, while micro-segmentation is a key technique that enables organizations to operationalize zero trust by creating secure zones within the network.