Microsegmentation
Dividing a network into granular, isolated zones at the device or workload level and enforcing identity-based traffic policies between them. More precise and effective than traditional VLAN-based segmentation.
What is Microsegmentation?
Dividing a network into granular, isolated zones at the device or workload level and enforcing identity-based traffic policies between them. More precise and effective than traditional VLAN-based segmentation.
Microsegmentation extends the concept of network segmentation to a more granular level — enforcing policies at the individual device or workload level rather than at the VLAN or subnet boundary. In a traditionally segmented network, devices within the same zone can communicate freely; microsegmentation adds controls that restrict even intra-zone communication to only explicitly permitted paths.
The value of microsegmentation becomes clear in breach scenarios. If an attacker compromises a single device in a traditional network zone — say, one of 200 IP cameras in a building access control segment — they can reach all other devices in that zone without additional barriers. With microsegmentation, the compromised camera can only communicate with the specific server it legitimately needs; all other intra-zone connections are blocked.
Implementing microsegmentation in IoT environments requires a fundamentally different approach than in cloud or virtualized environments. Cloud microsegmentation can rely on software-defined controls built into the hypervisor or cloud infrastructure. IoT microsegmentation must work at the physical network layer, using existing infrastructure (switches, routers, firewalls) and leveraging device identity established through fingerprinting rather than installed agents.
Key Facts
- Microsegmentation reduces the blast radius of a breach by containing movement to a single device or device type
- Implementing microsegmentation reduces east-west attack paths by over 90% in typical enterprise networks
- Policy-based microsegmentation eliminates manual firewall rule management at scale
- Gartner identifies microsegmentation as a top security control for lateral movement prevention
How ORDR Addresses Microsegmentation
ORDR enables microsegmentation for connected assets by combining device classification with behavioral baselines to generate precise, per-device-type allow lists. These policies are pushed to network enforcement points — Next-Gen Firewalls, NAC platforms, and SDN controllers — creating microsegment boundaries around individual device types without requiring agents or network redesign.
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