What is microsegmentation?
D3 · Architecture · CompTIA Security+ SY0-701Microsegmentation takes network segmentation to the extreme, dividing the network into very small, granular zones — down to individual workloads, VMs, or containers — and applying policies that control exactly which workloads can communicate with which others.
Implemented with: SDN (Software-Defined Networking), host-based firewalls, next-gen firewalls, service mesh (in Kubernetes).
Benefit: an attacker who compromises one workload is completely isolated — cannot reach any other workload without explicit policy allowance.
Implemented with: SDN (Software-Defined Networking), host-based firewalls, next-gen firewalls, service mesh (in Kubernetes).
Benefit: an attacker who compromises one workload is completely isolated — cannot reach any other workload without explicit policy allowance.
Microsegmentation is zero trust applied at the network level. It's the most granular form of segmentation. Used heavily in cloud/data center environments. Contrast with traditional VLANs which segment at a higher level. Essential for east-west (internal) traffic security.