Illumio Segmentation: Simple Yet Powerful Movement Control
Run one policy engine to stop lateral movement across your cloud workloads, endpoints, and data centers.


One policy engine for every workload
Illumio maps every connection across your cloud workloads, on-premises servers, containers, and endpoints in real time. You see exactly what's talking to what, with no manual mapping required. Then it automatically generates policy based on what it sees.
Illumio builds policy from workload identity, not IP addresses. So policy travels with the workload. Tag a workload as a production web server and the rule follows it to AWS, Azure, a bare-metal rack, or a container. New workloads inherit the right policy automatically.
Zero Trust means no implicit trust between workloads, not just at the perimeter. Illumio enforces that between applications, across every environment. Model a policy in draft view and see exactly what it would block before you turn it on.
모든 환경을 위한 단일 솔루션
Cloud / Containers
Cloud environments make east-west traffic hard to see. Illumio maps every connection and gives you one view of application communication and risk across Azure, AWS, GCP, and OCl, tightening policy enforcement - with or without an agent.


엔드포인트
Most endpoint tools detect after the fact. Illumio holds the boundary at the OS level, so ransomware landing on a laptop never reaches the file server next door. Compromised devices are quarantined instantly, managed or unmanaged.

데이터 센터
llumio maps traffic across physical servers, virtual machines, IT/OT systems, and containers, with no changes to your firewall setup. Our tamper-resistant agent runs in user space than kernel space, so deploy without a maintenance window or a reboot.



Microsegmentation Solutions, Q3 2026
Illumio Named a 2026 Forrester Wave Leader in Microsegmentation
The highest scores in current offering and strategy of all 10 vendors. And a Customer Favorite, straight from the people Forrester interviewed. Read it all in The Forrester Wave™: Microsegmentation Solutions, Q3 2026.
How Marriott Vacations Safeguards Its Data and Global Operations with Illumio

Microsegmentation frequently asked questions
Everything you need to know about microsegmentation, hybrid cloud, and breach containment.
It depends on how many environments you need to cover and how much operational overhead you can absorb. If you are running workloads across multiple clouds, on-prem data centers, and endpoints, a platform with a single policy engine and label-based enforcement is the right starting point. Otherwise you end up with separate segmentation tools for each environment and no consistent policy across them. Illumio is built for that use case. Forrester named it a Leader in the Q3 2026 Microsegmentation Wave.
The main problem with hybrid cloud segmentation is that traditional firewall rules are written per environment. You write rules for on-prem, and you write different rules for AWS, and the two do not talk to each other. Illumio uses labels instead of IP addresses. You tag a workload as "production" and "web tier" and the policy follows it wherever it runs. If that workload moves or a new instance spins up, it inherits the same policy. You are not rewriting rules for each cloud account.
Illumio's enforcement is at the host OS level, through the Windows Filtering Platform on Windows and iptables on Linux. The agent runs in user space, not kernel space, so it does not require a kernel patch or a reboot. The agent itself is tamper-proof, so a compromised workload can't disable its own enforcement policy. Each workload has a policy that specifies exactly which sources it accepts traffic from. Everything else is denied. The policy persists through agent restarts and reboots. In the Segmentation Map, you can see every active connection and every blocked attempt in real time.
Network segmentation creates zones. Once inside a zone, traffic moves freely. Microsegmentation creates a boundary at each workload. You can run both: network segmentation as the outer boundary, microsegmentation as containment inside each zone. Most organizations that take microsegmentation seriously end up running both.
Start with visibility. Before you write a rule, you need to know what is actually talking to what and what the dependencies are. Illumio's Map feature maps every connection in your environment automatically from telemetry, no packet capture required. You will find traffic you did not know existed: services communicating across segments they should not be in, backup jobs running over application ports, legacy systems that were supposed to be isolated years ago. From that map, Illumio automatically generates the recommended policy. Run in draft mode first, which shows you the impact before enforcement. In practice, most teams find three or four connections they need to allow before a policy is ready to go live. The process takes days, not months.
Most teams don't know how much east-west traffic crosses their environment until they map it.
Illumio builds that map in minutes.






