Understanding Micro-Segmentation
Micro-segmentation creates granular security zones down to individual workload level, enabling precise security policies for each application, user, or process. This approach prevents lateral movement even within traditionally trusted network segments.

Implementation Technologies
Micro-segmentation leverages software-defined networking, virtual firewalls, host-based firewalls, and container network policies. Cloud-native environments use security groups and network policies for granular control without physical network changes.
Policy Development
Effective micro-segmentation requires understanding application dependencies and communication patterns. Use application mapping tools to visualize traffic flows, then create whitelist policies allowing only necessary communications while denying all other traffic.
Zero Trust Integration
Micro-segmentation is fundamental to zero trust architectures, enforcing identity-based access controls at the workload level. Combine with strong authentication, device posture checking, and continuous verification for comprehensive security.
Operational Considerations
Successful micro-segmentation requires automation for scale, integration with orchestration platforms, clear policy governance, and monitoring to detect policy violations. Start with critical applications and expand gradually while maintaining operational stability.
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