Microsegmentation
Microsegmentation is a network security technique that divides a data center or cloud environment into small, isolated segments to control traffic flow between workloads. It applies granular security policies at the individual workload level (e.g., virtual machines, containers) rather than relying on traditional perimeter-based firewalls. This approach enhances security by limiting lateral movement of threats and reducing the attack surface within an infrastructure.
Developers should learn microsegmentation when building or managing applications in cloud-native, containerized, or virtualized environments to implement zero-trust security models and comply with regulatory requirements. It is particularly useful for securing sensitive data, isolating multi-tenant systems, and protecting against insider threats or breaches in industries like finance, healthcare, and e-commerce. By integrating microsegmentation into DevOps practices (DevSecOps), teams can automate security policies and improve resilience.