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Forescout Platform vs Illumio comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
6.4
Forescout Platform enhances security by automating risk remediation, identifying devices, and targeting vulnerabilities, leading to cost savings.
Sentiment score
7.4
Illumio provides East-West traffic visibility and log auditing, offering substantial value with cost-effectiveness and time efficiencies despite incomplete data.
Illumio is known to be the cheapest solution among the security solutions we evaluated.
Senior Technical Analyst at Allianz
 

Customer Service

Sentiment score
6.8
Forescout Platform's customer service is responsive and knowledgeable but needs improvements in partner interactions and consistent service quality.
Sentiment score
1.0
Illumio's customer service is generally responsive with 24/7 availability, but experiences and satisfaction vary among users.
We have had experience with their technical support and must pay additionally for maintenance, support, and regional service.
IT Head at a tech services company with 11-50 employees
Even if we raise an issue on non-working days like Saturdays or Sundays, we receive prompt responses.
Senior Technical Analyst at Allianz
From my experience, they are very responsive.
Technical Associate at a healthcare company with 11-50 employees
 

Scalability Issues

Sentiment score
7.6
Forescout Platform is praised for scalability and adaptability, accommodating various environments and needs despite network issues.
Sentiment score
7.6
Illumio effortlessly scales in large installations, supports diverse environments, and receives high user satisfaction across various professional roles.
Scalability can be costly since a physical box needs to be installed for every site.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
Scaling it to a large level is not an issue for us.
Cyber Security Architect at a tech vendor with 10,001+ employees
 

Stability Issues

Sentiment score
8.0
Forescout Platform is highly stable, with minor issues resolved quickly by effective support, earning user confidence in its performance.
Sentiment score
8.0
Illumio is praised for stability and reliability, using native firewalls with high user satisfaction and an 8.5 rating.
I would rate its stability as 9.5 out of ten.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
Illumio is a stable solution with no glitches or bugs reported, making it a reliable product for us.
Senior Technical Analyst at Allianz
 

Room For Improvement

Forescout users seek enhanced memory management, detection, integration, reporting, interfaces, AI features, affordability, and improved support.
Illumio needs improved support, integration, OS compatibility, data security, detailed logs, interactive sessions, and tagging automation guidance.
It would help if during integration, an admin user could check the password or credential used, as they currently cannot see the password after it is entered and saved.
Security Consultant at a tech vendor with 10,001+ employees
Forescout Platform could enhance its integration of AI to improve IoT and OT device security to better meet our needs.
IT Head at a tech services company with 11-50 employees
The console is a fat client, and a web interface would be preferable.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
There could also be more examples of how the automations can be done using Illumio.
Cyber Security Architect at a tech vendor with 10,001+ employees
That's why I'm looking for comparisons with other products.
Technical Associate at a healthcare company with 11-50 employees
There should be an option to upgrade from the console to the latest version instead of performing manual upgrades.
Senior Technical Analyst at Allianz
 

Setup Cost

Forescout Platform is costly but offers scalable value, with flexible licensing based on devices and potential discounts available.
Illumio offers flexible pricing based on workloads, with mixed views on cost, subscribing every three years.
The overall pricing of Forescout Platform is reasonable for the functionality it provides.
IT Head at a tech services company with 11-50 employees
Installing a physical box on each site can be expensive.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
The price of Forescout Platform is reasonable and not overly costly.
Security Consultant at a tech vendor with 10,001+ employees
I know that Illumio is the cheapest solution in the security area.
Senior Technical Analyst at Allianz
I think it's not very expensive if we compare it with Guardicore.
Cyber Security Architect at a tech vendor with 10,001+ employees
 

Valuable Features

Forescout Platform offers agentless network access, endpoint visibility, and seamless integration for efficient security and compliance management.
Illumio enhances security and usability with its Application Dependency Map, traffic analysis, and centralized policy management, aiding visibility and micro-segmentation.
The most effective feature has been network access management, which has been crucial for our primary use cases in the organization.
IT Head at a tech services company with 11-50 employees
One of the most valuable features of Forescout Platform is its automation, particularly the ability to automate remediation of rogue devices on the network.
Director, International IT Infrastructure Support & Information Security at a manufacturing company with 1,001-5,000 employees
When it comes to the effectiveness of Forescout Platform's real-time visibility in reducing the overall attack surface, I give it a 9 out of 10.
Security Consultant at a tech vendor with 10,001+ employees
Illumio helps in audit purposes by saving data and showing blocked traffic, ensuring no outside traffic is allowed.
Senior Technical Analyst at Allianz
The most important feature is the traffic review analysis, where we use the draft view and the reported view that helps us understand how the application interacts with other applications in the environment, and based on that, we are able to define the policies.
Cyber Security Architect at a tech vendor with 10,001+ employees
The dependency map is the most valuable aspect.
Technical Associate at a healthcare company with 11-50 employees
 

Categories and Ranking

Forescout Platform
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
78
Ranking in other categories
Network Access Control (NAC) (5th), IoT Security (4th), Endpoint Compliance (5th), Extended Detection and Response (XDR) (21st)
Illumio
Average Rating
8.2
Reviews Sentiment
5.7
Number of Reviews
12
Ranking in other categories
Cloud and Data Center Security (6th), Cloud Workload Protection Platforms (CWPP) (13th), Microsegmentation Software (2nd)
 

Mindshare comparison

While both are Network Security Systems solutions, they serve different purposes. Forescout Platform is designed for Network Access Control (NAC) and holds a mindshare of 10.8%, down 13.6% compared to last year.
Illumio, on the other hand, focuses on Cloud and Data Center Security, holds 19.5% mindshare, down 25.0% since last year.
Network Access Control (NAC) Market Share Distribution
ProductMarket Share (%)
Forescout Platform10.8%
Cisco Identity Services Engine (ISE)22.4%
Aruba ClearPass21.6%
Other45.199999999999996%
Network Access Control (NAC)
Cloud and Data Center Security Market Share Distribution
ProductMarket Share (%)
Illumio19.5%
Akamai Guardicore Segmentation18.8%
Cisco Secure Workload11.5%
Other50.2%
Cloud and Data Center Security
 

Featured Reviews

AshishKumar Rai - PeerSpot reviewer
Security Consultant at a tech vendor with 10,001+ employees
Comprehensive visibility has strengthened endpoint control and automated threat response across networks
When it comes to improving Forescout Platform, I have faced some issues recently, particularly with the switch integration part. When integrating a switch, it asks for the vendor type, and often it does not match. For example, one series of HP switches may not be found in that vendor list. This leads to frustration because you have to check again with different HP models, and once you integrate a switch, you cannot edit the vendor list without removing it. Other issues are being worked on, particularly related to switch integration. I believe they will be fixed in the next upgrade or patch fix. There are no major issues, but the configuration changes needed for the switch model are necessary, and I think it would help if during integration, an admin user could check the password or credential used, as they currently cannot see the password after it is entered and saved.
US
Cyber Security Architect at a tech vendor with 10,001+ employees
Have created granular security policies based on roles and application behavior
The best feature that Illumio offers is that we can easily understand how to label the applications, how to install Illumio agent on the client machines, how to install the agent on the servers, and how to do the ring-fencing. The log analysis is very simple, and we can map the traffic very easily, such as the traffic view and map view. We have many views to do that, and then we have a topology environment where we can expand the topology and understand how we want to prepare our policy based on the requirement. These are some of the very good use cases that Illumio provides, which none of the other vendors can offer in such an easy and usable way. The most important feature is the traffic review analysis, where we use the draft view and the reported view that helps us understand how the application interacts with other applications in the environment, and based on that, we are able to define the policies. It has increased the business for the organization. We are creating business by supporting the client. The client is getting more security and is more confident in their network because they now have the micro-segmentation feature in their environment. This is new technology and that's how it helps the organization as a whole. The clients we support are benefited, and at the same time, we are making money out of it. This is definitely a good approach. After implementing Illumio, there has been significant progress. Most of the app owners now understand what applications are communicating, how these applications interact with others, and we are more aware of which application is talking to what other servers and applications, and their roles. For instance, whether an application is talking to the DB server or an app server. We have a more granular understanding of the traffic view. Additionally, after implementing Illumio, there is greater segmentation, and fewer incidents are occurring. There have been times when an attack was halted from expanding laterally.
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Top Industries

By visitors reading reviews
Manufacturing Company
11%
Financial Services Firm
11%
Computer Software Company
9%
Government
8%
Financial Services Firm
18%
Computer Software Company
12%
Manufacturing Company
8%
Insurance Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise10
Large Enterprise44
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise8
 

Questions from the Community

What advice do you have for others considering Forescout Platform?
Forescout is a very powerful NAC product that does not rely on port level configuration. It can detect and block unauthorized devices very quickly. But it has a lot of capabilities and really would...
What advice do you have for others considering Forescout Platform?
I would rate the Forescout Device and Visibility Control Platform at a six out of ten.
What advice do you have for others considering Forescout Platform?
I recommend doing a compression demo. If people use it, they will buy it. So they have to see the product in place. That's the main recommendation is to do a proof of concept. If they do, they will...
What is your experience regarding pricing and costs for Illumio Adaptive Security Platform?
My experience was really good because I think it's not very expensive if we compare it with Guardicore. I believe that's a good product.
What needs improvement with Illumio Adaptive Security Platform?
Illumio can be improved if we have more interactive sessions with the tech team. The support of Illumio can be better since it's a new tool, and people can explore it more. There could also be more...
What is your primary use case for Illumio Adaptive Security Platform?
The main use case for Illumio is providing micro-segmentation where we don't want to segment the network based on IP addresses but rather segment them based on roles, applications, and environments...
 

Also Known As

Forescout Platform, CounterACT for Endpoint Compliance, ForeScout CounterACT
Illumio Adaptive Security Platform, Illumio ASP
 

Overview

 

Sample Customers

NHS Sussex, SAP, SEGA, Vistaprint, Miami Children's Hospital, Pioneer Investments, New York Law School, OmnicomGroup, Meritrust
Plantronics, NTT Innovation Institute Inc.
Find out what your peers are saying about Hewlett Packard Enterprise, Cisco, Fortinet and others in Network Access Control (NAC). Updated: January 2026.
881,082 professionals have used our research since 2012.