Network Segmentation

Remove complexity from zero trust network segmentation with visualized traffic flows and policy simulation.

Flat, under-segmented networks allow threats to propagate and expand the blast radius, increasing risk and exposure. The Forescout 4D Platform™ accelerates the design, planning and deployment of dynamic network segmentation. Visualize traffic flows to see what should and shouldn’t be communicating and simulate policy changes to avoid gaps and misconfigurations – without causing business disruption.

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Why Forescout for Dynamic Network Segmentation

Forescout Network Segmentation UI

Visual Traffic Matrix

Facilitate policy design by visualizing traffic flows based on a logical taxonomy of users, applications, services, functions, locations, devices and risk level.

Simulation

Minimize business disruption by simulating policy changes and flagging violations or contradictions that could have unexpected consequences in production environments.

Continuous Monitoring

Monitor segmentation compliance to identify anomalous communications, validate that controls are working as designed and quickly respond to policy violations.

A Core Tenet of Zero Trust

As a key enforcement strategy, network segmentation is a core tenet of a zero trust architecture. Most cyber threats can be mitigated with segmentation that restricts traffic flows to only those assets that must communicate with each other and by isolating vulnerable devices until they can be remediated.

The Forescout 4D Platform™ provides a visual baseline of how all connected assets are interacting so you can easily determine how they should be communicating, over what ports and protocols, based on “least-privilege access” – that is, access only to what users or services need to do their jobs.

A Must for Converged IT/IoT/OT Networks

Digital transformation has resulted in converged IT, IoT and OT networks everywhere. Instead of patching, OT and IoT devices must often be segmented from other parts of the network and monitored to detect anomalies. Otherwise, communication links may go unchecked and vulnerabilities hide in plain sight.

Knowing what’s on the network requires seeing all connected assets on every network and knowing how they’re communicating.

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Customer Success with Network Segmentation Management

“Segmentation is an absolute must-have, but to get there, you need full visibility and a clear understanding of your assets. Forescout is invaluable for identifying, consolidating and segmenting assets as we continue to grow by acquisition.”

CISO Fortune 500 Manufacturing Company
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“In short, Forescout is the front line of our active defense. It gives us the information we need to make smart decisions about security as well as infrastructure and operations.”

Hector Mendez Chief Security Officer Mobility ADO
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“To gain the functionality that Forescout provides – from seeing and managing assets to triggering control actions and accelerating zero trust segmentation – we would have needed multiple tools. Going with Forescout was far more cost-effective.”

Jeff Haidet Director of Application Development and Architecture South Central Power Co.
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Which Devices Have the Most Risk?

Find out in our annual report:
The Riskiest Devices of 2025.

This year, 12 brand-new asset types make the list — including new ones in IT, OT, IoT, and medical devices.

see the data

Flexible. Versatile. Rapid Deployment.

Forescout offers unmatched deployment flexibility to meet the diverse hardware and cloud requirements of modern environments. We ensure compatibility with existing infrastructures while minimizing operational disruption. This versatility makes it an ideal choice for your organization. If you seek robust, scalable solutions tailored to your unique operational and regulatory landscapes, look no further.

The Forescout 4D Platform™ adapts seamlessly with options for on-premises installations, virtual machines and Docker-based containerized deployments, including:

  • Air-gapped systems for high-security needs
  • Forescout appliances that deliver maximum visibility and control
  • Hybrid configurations to connect distributed sites
  • Fully cloud-based operations for scalability

…and Sensors that can be deployed as:

  • Standalone appliances
  • Installed directly on routers and switches for quick implementation without production disruption
  • Or configured as active sensors to query network infrastructure

Deploy Forescout on Phoenix Contact Security Solutions Industrial Switching Platform for enhanced security and simplified deployments

Reduce physical hardware and deploy Forescout in Azure – a scalable, robust and cost-effective solution

Deploy Forescout on Keysight packet brokers for efficient and scalable deployments

Leverage the Dell Validated Design for Energy Edge to deploy in substations with ABB and Forescout

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Forescout Dashboard Product Screenshot

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Get a personalized tour of our solutions and see how we can help you automate cybersecurity.

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1 The 6 Principles of Successful Network Segmentation Strategies, Jeremy D’Hoinne, Andrew Lerner, 19 November 2022.
Disclaimer: GARTNER is a registered trademark and service mark of Gartner, Inc. and/or its affiliates in the U.S. and internationally and is used herein with permission. All rights reserved.

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