--- title: Illumio Reviews meta\_title: 'Illumio Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 37 reviews by the users' company size, role or industry to find out how Illumio works for a business like yours. aggregate\_rating: rating\_value: 4.5 review\_count: 37 scale: '5' date\_modified: '2026-08-09' parent\_category: name: Network Security url: https://www.g2.com/categories/network-security ---

### Illumio Pros and Cons: Top 5 Advantages and Disadvantages

#### Quick AI Summary Based on G2 Reviews

Generated from real user reviews

Users find Illumio's **ease of use** exceptional, praising its simple configuration and quick deployment capabilities. [(9 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2309124&qs=pros-and-cons#reviews)

Users value Illumio for its **strong security against breaches** , effectively preventing lateral movement within networks. [(5 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2309142&qs=pros-and-cons#reviews)

Users value the **centralized management** of Illumio, enhancing security and simplifying access controls across diverse environments. [(3 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2309154&qs=pros-and-cons#reviews)

Users value the **ease of implementation** of Illumio, which simplifies integration and reduces setup time significantly. [(3 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2354249&qs=pros-and-cons#reviews)

Users appreciate the **installation ease** of Illumio, finding it quick to deploy and simple to manage. [(3 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2392918&qs=pros-and-cons#reviews)

Users note a **difficult learning curve** with Illumio, requiring time and training to understand its policy model effectively. [(2 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2354080&qs=pros-and-cons#reviews)

Users find **integration issues** with Illumio, particularly the lack of direct log streaming to a SIEM frustrating. [(2 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2392919&qs=pros-and-cons#reviews)

Users find **compatibility issues** with legacy operating systems frustrating and detrimental to their experience with Illumio. [(1 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2354024&qs=pros-and-cons#reviews)

Users note a **difficult learning curve** with Illumio, but the policy model becomes clearer over time. [(1 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2354253&qs=pros-and-cons#reviews)

Users find Illumio to be **expensive** , especially when compared to simpler security controls and needing training. [(1 mentions)](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2438077&qs=pros-and-cons#reviews)

### 5 Pros or Advantages of Illumio

##### 1. Ease of Use

Users find Illumio's **ease of use** exceptional, praising its simple configuration and quick deployment capabilities.
[
See 9 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2309124&qs=pros-and-cons#reviews)

See Related User Reviews

MG

Marco G.

Enterprise (\> 1000 emp.)

4.5/5

"Zero Trust Segmentation That Boosts Visibility and Limits Breach Impact"

What do you like about Illumio?

Illumio is helpful because it stops attackers from moving around your network if a breach happens. It uses Zero Trust segmentation to limit access wi

 ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User")
I

Verified User

Enterprise (\> 1000 emp.)

5.0/5

"Easy to Use and Powerful—Highly Recommended"

What do you like about Illumio?

Easy to use , powerfull and quick to freeze a problematic pc

##### 2. Security

Users value Illumio for its **strong security against breaches** , effectively preventing lateral movement within networks.
[
See 5 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2309142&qs=pros-and-cons#reviews)

See Related User Reviews

MG

Marco G.

Enterprise (\> 1000 emp.)

4.5/5

"Zero Trust Segmentation That Boosts Visibility and Limits Breach Impact"

What do you like about Illumio?

Illumio is helpful because it stops attackers from moving around your network if a breach happens. It uses Zero Trust segmentation to limit access wi

LN

Lafaiete N.

5.0/5

"Effortless Cybersecurity with Stellar Support"

What do you like about Illumio?

I love Illumio for its ease of implementation, which simplifies integrating the system into our network environment. This feature significantly reduce

##### 3. Centralized Management

Users value the **centralized management** of Illumio, enhancing security and simplifying access controls across diverse environments.
[
See 3 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2309154&qs=pros-and-cons#reviews)

See Related User Reviews

MG

Marco G.

Enterprise (\> 1000 emp.)

4.5/5

"Zero Trust Segmentation That Boosts Visibility and Limits Breach Impact"

What do you like about Illumio?

Illumio is helpful because it stops attackers from moving around your network if a breach happens. It uses Zero Trust segmentation to limit access wi

MK

Michael K.

Enterprise (\> 1000 emp.)

5.0/5

"Solid platform for microsegmentation, reducing ACL complexity, and ransomware protection"

What do you like about Illumio?

My org uses Illumio for intra-VLAN protection, ransomware blast radius reduction, and as a more flexible alternative to our mess of ACLs. It's lettin

##### 4. Implementation Ease

Users value the **ease of implementation** of Illumio, which simplifies integration and reduces setup time significantly.
[
See 3 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2354249&qs=pros-and-cons#reviews)

See Related User Reviews

 ![Jessie Chris II B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Jessie Chris II B.")
JB

Jessie Chris II B.

Enterprise (\> 1000 emp.)

5.0/5

"Effortless Microsegmentation and Fast Troubleshooting with Illumio"

What do you like about Illumio?

The microsegmentation is its biggest feature. What I like most is the ease in configuration and implementation. Troubleshooting can be done faster as

 ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User")
C

Verified User

Enterprise (\> 1000 emp.)

5.0/5

"Revolutionizes Zero Trust with Effortless Micro-Segmentation"

What do you like about Illumio?

Illumio is among the most impressive technologies I have encountered for supporting a zero trust approach. It greatly simplifies the process of implem

##### 5. Installation Ease

Users appreciate the **installation ease** of Illumio, finding it quick to deploy and simple to manage.
[
See 3 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2392918&qs=pros-and-cons#reviews)

See Related User Reviews

MG

Marco G.

Enterprise (\> 1000 emp.)

4.5/5

"Zero Trust Segmentation That Boosts Visibility and Limits Breach Impact"

What do you like about Illumio?

Illumio is helpful because it stops attackers from moving around your network if a breach happens. It uses Zero Trust segmentation to limit access wi

 ![Jessie Chris II B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Jessie Chris II B.")
JB

Jessie Chris II B.

Enterprise (\> 1000 emp.)

5.0/5

"Effortless Microsegmentation and Fast Troubleshooting with Illumio"

What do you like about Illumio?

The microsegmentation is its biggest feature. What I like most is the ease in configuration and implementation. Troubleshooting can be done faster as

### 5 Cons or Disadvantages of Illumio

##### 1. Difficult Learning Curve

Users note a **difficult learning curve** with Illumio, requiring time and training to understand its policy model effectively.
[
See 2 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2354080&qs=pros-and-cons#reviews)

See Related User Reviews

MG

Marco G.

Enterprise (\> 1000 emp.)

4.5/5

"Zero Trust Segmentation That Boosts Visibility and Limits Breach Impact"

What do you dislike about Illumio?

Illumio can take time to fully tune, since defining the right policies requires upfront effort. It focuses on segmentation, so it doesn’t replace oth

MK

Michael K.

Enterprise (\> 1000 emp.)

5.0/5

"Solid platform for microsegmentation, reducing ACL complexity, and ransomware protection"

What do you dislike about Illumio?

There is definitely a learning curve, but once you wrap your head around the policy model, it clicks. Only gotcha I've seen is that changing a serve

##### 2. Integration Issues

Users find **integration issues** with Illumio, particularly the lack of direct log streaming to a SIEM frustrating.
[
See 2 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2392919&qs=pros-and-cons#reviews)

See Related User Reviews

 ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User")
E

Verified User

Enterprise (\> 1000 emp.)

2.5/5

"Needs More Innovation and Better Integration"

What do you dislike about Illumio?

Illumio lacks innovation and integration.

 ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User")
C

Verified User

Enterprise (\> 1000 emp.)

5.0/5

"Revolutionizes Zero Trust with Effortless Micro-Segmentation"

What do you dislike about Illumio?

I think there is always potential for improvement. My main issue is the inability to stream logs directly to a SIEM, which I find limiting. Aside from

##### 3. Compatibility Issues

Users find **compatibility issues** with legacy operating systems frustrating and detrimental to their experience with Illumio.
[
See 1 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2354024&qs=pros-and-cons#reviews)

See Related User Reviews

LN

Lafaiete N.

5.0/5

"Effortless Cybersecurity with Stellar Support"

What do you dislike about Illumio?

I find compatibility with legacy operating systems to be lacking.

##### 4. Difficult Learning

Users note a **difficult learning curve** with Illumio, but the policy model becomes clearer over time.
[
See 1 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2354253&qs=pros-and-cons#reviews)

See Related User Reviews

MK

Michael K.

Enterprise (\> 1000 emp.)

5.0/5

"Solid platform for microsegmentation, reducing ACL complexity, and ransomware protection"

What do you dislike about Illumio?

There is definitely a learning curve, but once you wrap your head around the policy model, it clicks. Only gotcha I've seen is that changing a serve

##### 5. Expensive

Users find Illumio to be **expensive** , especially when compared to simpler security controls and needing training.
[
See 1 mentions
](https://www.g2.com/products/illumio/reviews?filters%5Bsentiment_snippet%5D=2438077&qs=pros-and-cons#reviews)

See Related User Reviews

MG

Marco G.

Enterprise (\> 1000 emp.)

4.5/5

"Zero Trust Segmentation That Boosts Visibility and Limits Breach Impact"

What do you dislike about Illumio?

Illumio can take time to fully tune, since defining the right policies requires upfront effort. It focuses on segmentation, so it doesn’t replace oth

 ![Verified User in Financial Services](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Financial Services")
EF

Verified User in Financial Services

Enterprise (\> 1000 emp.)

4/15/2026

"Enhanced Network Segmentation"

4.5/5

What do you like best about Illumio?

I really appreciate Illumio’s “illumination” feature because it lets me map current traffic and understand communication patterns before I apply more restrictive policies. The different maps and dependency views make it easier to see how systems interact and give me a more complete overall picture, which is especially valuable when I’m working on network segmentation. Review collected by and hosted on G2.com.

What do you dislike about Illumio?

Adopting Illumio hasn’t been that easy. Even after a year, we’re still learning how to enable and use some features effectively. I’d like our security analysts, network engineers, and sys admins to be able to leverage it more confidently. More guided, hands-on technical workshops that are available to customers would really help us fully adopt the product. Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

We use Illumio for network segmentation to monitor and control traffic, block lateral movement, and better understand communication patterns across my environment. The Illumination feature maps traffic flows and dependencies, giving me a clear, complete picture of what’s communicating with what before I apply policies. Review collected by and hosted on G2.com.

Show More

7/28/2026
Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller

 ![Himanshu S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Himanshu S.")
HS

Himanshu S.

Lead Network Consultant

Enterprise (\> 1000 emp.)

7/17/2026

"Effective Micro-Segmentation with Great Enterprise Visibility"

4.5/5

What do you like best about Illumio?

I use Illumio for its core micro-segmentation functionality. I like that it provides visibility which is really useful for big enterprises. After installation, it created a map of all workloads, helping to restrict lateral movement and better identify and map our environment. I also found the initial setup very easy, with a professional team providing guidance and support at every stage. Review collected by and hosted on G2.com.

What do you dislike about Illumio?

I believe Illumio needs to enhance their solution in container environments so they can offer enforcement with an agentless solution. Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

I find that Illumio limits the damage of potential breaches by restricting lateral movement. We gain visibility with its core functionality, and it creates a map of our workloads, helping us identify and map our environment better. Review collected by and hosted on G2.com.

Show More

Validated ReviewerIncentivizedSource: G2 invite on behalf of seller

 ![Aman M.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Aman M.")
AM

Aman M.

Enterprise (\> 1000 emp.)

7/21/2026

"Effortless Cost Optimization and Integration"

1/5

What do you like best about Illumio?

I think Illumio is an easy-to-use product that's been helping me quite a lot with the portfolio of customers that I manage. I think it's a good tool to leverage. I also find the complete suite to be a good one. The initial setup was easy, with a team of experts that made the implementation less complicated and fairly simple. Overall, it's a product that helps us at a larger enterprise level. Review collected by and hosted on G2.com.

What do you dislike about Illumio?

Nothing much but the UI could be a bit more simpler Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

I use Illumio for cost optimizations and tech recoveries, leveraging it to save on costs and plan for ROI. It's an easy-to-use product that helps manage my customer portfolio effectively. Review collected by and hosted on G2.com.

Show More

Validated ReviewerIncentivizedSource: G2 invite on behalf of seller

 ![Verified User in Financial Services](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Financial Services")
AF

Verified User in Financial Services

Mid-Market (51-1000 emp.)

7/22/2026

"Excellent Value, Flexible Network Security with Real-Time Visibility"

4.5/5

What do you like best about Illumio?

The application is an excellent tool that can manage almost everything across your infrastructure and secure your network without exposing it.

Based on the market, I found it the best value-for-money solution with a lot of flexibility to work with. The instant performance of the system gives you real-time visibility into the activity within your network. You can integrate with any cloud options, and the best part is the support you receive from them. Review collected by and hosted on G2.com.

What do you dislike about Illumio?

It is not a dislike as such, but it will need to be improved Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

We help us resolve a lot of isolations that we need to perform in our infra. Review collected by and hosted on G2.com.

Show More

Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller

 ![Luc C.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Luc C.")
LC

Luc C.

Domain Architect

Enterprise (\> 1000 emp.)

4/15/2026

"Top choice for Micro-Segmentation and Flow Visualization"

5/5

What do you like best about Illumio?

I find the visualization of the flows a great help in setting up rulesets. It is convenient that you can first put a workload in Selective Enforcement mode to gain insight into which flows are going to and from those workloads. The draft view on the map clearly indicates what would be blocked in Full Enforcement mode. I also find it positive that Illumio offers APIs that are easily usable, allowing us to enrich our workloads in Illumio with information from our CMDB. We were able to automate the installation of the VENs via SCCM, which I find very practical. Review collected by and hosted on G2.com.

What do you dislike about Illumio?

The standard reports, such as the executive summary, contain too much technical information. It would be useful if you could create custom reports. Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

I use Illumio for micro-segmentation to avoid lateral movement. The visualization of the flows greatly helps in setting up rulesets. With Selective Enforcement mode, I get prior insight into the network traffic and what would be blocked, which is very useful. Review collected by and hosted on G2.com.

Show More

Validated ReviewerIncentivizedSource: G2 invite on behalf of sellerAI Translated

 ![Sidhant G.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Sidhant G.")
SG

Sidhant G.

Senior Technical Architect - Cybersecurity

Mid-Market (51-1000 emp.)

7/15/2026

"Simplifying Zero Trust, Strengthening Security"

5/5

What do you like best about Illumio?

As someone who works closely with customers, I like that Illumio helps translate Zero Trust concepts into tangible security outcomes. It gives customers better visibility, stronger protection, and confidence in their security posture. Review collected by and hosted on G2.com.

What do you dislike about Illumio?

Nothing major, just think some workflows could be a bit more intuitive. Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

Illumio helps simplify Zero Trust by providing better visibility and controlling lateral movement across workloads. It benefits me by making it easier to design solutions that address real customer challenges and deliver measurable security improvements. Review collected by and hosted on G2.com.

Show More

Validated ReviewerIncentivizedSource: G2 invite on behalf of seller

SS

Steve S.

Regional GM

Mid-Market (51-1000 emp.)

4/17/2026

"Easy to Deploy, Fast Traffic-Flow Visibility with Illumio"

5/5

What do you like best about Illumio?

Illumio is easy to deploy and within a few hours, you have total visibility of traffic flows on your network. There are no performance issues on the endpoints and pricing is inline with expectations Review collected by and hosted on G2.com.

What do you dislike about Illumio?

There are no downsides of Illumio, the product is easy to use, wide operating support and quick to onboard Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

For companies with legacy or flat networks, Illumio can easily solve the lateral movement problem without reengineering the network. Also stops blast radius in the event of a breach Review collected by and hosted on G2.com.

Show More

Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller

 ![Verified User in Legal Services](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Legal Services")
AL

Verified User in Legal Services

Mid-Market (51-1000 emp.)

4/21/2026

"Easy Deployment, Strong Security Impact, and Great Support"

4.5/5

What do you like best about Illumio?

We implemented Illumio in response to an internal audit. It was easy to deploy, configuration was straightforward, and it makes a measurable impact in our security posture org-wide. The UI is easy to navigate, performance has been very high, and the price is reasonable. Illumio's customer success team has been great to work with and provided prompt support. Review collected by and hosted on G2.com.

What do you dislike about Illumio?

As with all micro-segmentation tools, it is very easy to make a high-impact bad configuration change. We have to be extremely careful, especially when we have junior engineers operating within the tool. Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

An internal audit revealed a weakness in our previous micro-segmentation setup. Illumio addressed this weakness quickly, easily, and comprehensively. Review collected by and hosted on G2.com.

Show More

Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller

MG

Marco G.

Lead Network Engineer

Enterprise (\> 1000 emp.)

1/27/2026

"Zero Trust Segmentation That Boosts Visibility and Limits Breach Impact"

4.5/5

What do you like best about Illumio?

Illumio is helpful because it stops attackers from moving around your network if a breach happens.

It uses Zero Trust segmentation to limit access without needing major network changes.

You get clear visibility into application traffic across data centers and cloud environments.

It’s quick to deploy, easy to manage, and scales well as your environment grows.

Overall, it reduces the blast radius of attacks, simplifies operations, and strengthens security with minimal disruption. Review collected by and hosted on G2.com.

What do you dislike about Illumio?

Illumio can take time to fully tune, since defining the right policies requires upfront effort.

It focuses on segmentation, so it doesn’t replace other security tools like EDR or firewalls.

The value is highest in complex environments, which may limit impact for very small setups.

Licensing and cost can feel high compared to simpler controls.

Teams may also need training to get comfortable with the model and workflows. Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

Illumio helps stop cyberattacks from spreading inside a network by breaking it into small, controlled segments.

It gives clear visibility into how systems and applications talk to each other.

This makes it easier to spot risky connections and unusual behavior.

It automates security policies, reducing manual work and mistakes.

Illumio works across on-prem, cloud, and hybrid environments.

If a breach happens, the damage is contained instead of spreading everywhere.

Overall, it simplifies security operations while making the organization more resilient and compliant. Review collected by and hosted on G2.com.

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Validated ReviewerSource: Organic

 ![Verified User in Banking](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Banking")
AB

Verified User in Banking

Small-Business (50 or fewer emp.)

4/21/2026

"Illumio: #1 A Lighter, Easier-to-Manage Solution for Large Environments"

5/5

What do you like best about Illumio?

llumio is seen as a “lighter” and easier-to-manage solution in large environments Review collected by and hosted on G2.com.

What do you dislike about Illumio?

Illumio still faces challenges to overcome, such as its approach to AI implementation at the K8s level—among other areas of opportunity related to the use of AI itself—but I believe it is on the right track for now. Review collected by and hosted on G2.com.

What problems is Illumio solving and how is that benefiting you?

Personally, I find that microsegmentation using Illumio is much more user-friendly in terms of installation, configuration, and overall operation compared to other solutions Review collected by and hosted on G2.com.

Show More

Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller

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##### Categories on G2

[Zero Trust Networking](https://www.g2.com/categories/zero-trust-networking)[Cloud Workload Protection Platforms](https://www.g2.com/categories/cloud-workload-protection-platforms)[Zero Trust Platforms](https://www.g2.com/categories/zero-trust-platforms)

[Zero Trust Networking](https://www.g2.com/categories/zero-trust-networking)[Cloud Workload Protection Platforms](https://www.g2.com/categories/cloud-workload-protection-platforms)[Zero Trust Platforms](https://www.g2.com/categories/zero-trust-platforms)[Network Security Policy Management (NSPM)](https://www.g2.com/categories/network-security-policy-management-nspm)[Microsegmentation](https://www.g2.com/categories/microsegmentation)[Data Center Security Solutions](https://www.g2.com/categories/data-center-security-solutions)

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