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Microsoft Defender for Cloud Apps vs Proofpoint Cloud App Security Broker comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

Review summaries and opinions

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

Categories and Ranking

iboss
Sponsored
Ranking in Cloud Access Security Brokers (CASB)
6th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
24
Ranking in other categories
Secure Web Gateways (SWG) (6th), Internet Security (3rd), Web Content Filtering (1st), ZTNA as a Service (6th), Secure Access Service Edge (SASE) (7th)
Microsoft Defender for Clou...
Ranking in Cloud Access Security Brokers (CASB)
5th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
42
Ranking in other categories
Advanced Threat Protection (ATP) (16th), Microsoft Security Suite (8th)
Proofpoint Cloud App Securi...
Ranking in Cloud Access Security Brokers (CASB)
17th
Average Rating
8.2
Reviews Sentiment
7.7
Number of Reviews
5
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Cloud Access Security Brokers (CASB) category, the mindshare of iboss is 4.6%, up from 1.9% compared to the previous year. The mindshare of Microsoft Defender for Cloud Apps is 5.6%, down from 8.6% compared to the previous year. The mindshare of Proofpoint Cloud App Security Broker is 0.9%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Access Security Brokers (CASB) Mindshare Distribution
ProductMindshare (%)
Microsoft Defender for Cloud Apps5.6%
iboss4.6%
Proofpoint Cloud App Security Broker0.9%
Other88.9%
Cloud Access Security Brokers (CASB)
 

Featured Reviews

Ashok Ananthula - PeerSpot reviewer
Senior Consultant Proxy Engineering at a financial services firm with 10,001+ employees
Cloud gateway has strengthened remote web security and now needs better Mac and ISP support
The problem our organization had is that iboss failed for the Mac devices. It is not able to give a successful agent for the Mac agents. That is where in 2025, we had to migrate to the Palo Alto-based platform. If your use case is for just Windows laptops,you can consider this platform as an option One issue is the data center resiliency part. In India especially, they are not tied up with the Tier 1 ISPs like Tata or Airtel; they were having Tier 2 ISPs and encountered many issues reaching few major sites that my organization depends on, and they were having problems that they could not fix quickly. They also lack a mechanism to route that traffic within their data center; rather, they ask customers to make a pac file change to route it to Singapore explicitly. It would be better if they route from their backend , i mean even if I send it to India DC, they should be able to route it internally to make that work; however, they fail to do that and ask the customer to route it in the pac file. Another suggestion is that in China, they do not have the proper setup; they used to have numerous problems with slowness and lack of premium circuits in China as well. That leads to multiple sites working slowly with latency-related issues. So the main issue is the ISP-related problems that need to be solved.
Abdulrahman Muhammadi - PeerSpot reviewer
information Security and IT Manager at Discover Dollar Technologies Pvt Ltd.
Integration with existing cloud workflows has simplified compliance and threat detection
Licensing cost is a significant concern. With Defender Plan 1, Microsoft Defender for Cloud Apps comes with a pay-per-use model. Each feature has its own pricing when activated on VMs. For example, the vulnerability assessment has separate pricing, the base model including encryptions has separate pricing, and the compliance features have separate pricing. This applies to each VM and Azure resource individually. It is not straightforward where you can take one license and apply it to everything. Each feature has its own pricing model which can be tedious, as the costs keep accumulating. The only lacking feature currently is XDR (extended detection and response). Apart from that, I have only positive experiences with the whole Microsoft suite, except for the pricing structure.
Farzad Ebrahimi - PeerSpot reviewer
Senior Devsecops Cloud Cybersecurity Specialist at CGI
Layered security has protected our cloud AI apps and significantly reduced attack incidents
The best features Proofpoint Cloud App Security Broker offers are multilayer protection against security attacks and escalation. The escalation feature in Proofpoint Cloud App Security Broker is valuable because we are using more and more users, and it is very scalable in relation to the number of users using the same app on the cloud. The performance of Proofpoint Cloud App Security Broker stands out as the number of attacks blocked is more than 90%. Proofpoint Cloud App Security Broker has positively impacted my organization by resolving all of the security issues related to app security. I can share specific outcomes, such as a reduction in the number of incidents, which is more than 90% related to the past.

Quotes from Members

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

Pros

"From a corporate perspective, I understand that it's important to keep the company data safe."
"From a use-case scenario, what I like the most is the plug-in. I like the fact that we can do the filtering of these devices offsite independent of the network they are connected to, and we do not have to have traffic coming back inside our network."
"Because of iboss, I did not have to assign web filtering tasks to my techs on a daily basis."
"Content filtering is the most useful feature of iboss."
"The console is cloud-based, which is something I really appreciate."
"The iboss system is highly reliable. The false positive rates are small compared to some other systems we've experienced through other partner agencies who use competing solutions."
"Our primary use case for this product is DLP,"
"iboss is definitely very good in terms of service."
"It does a great job of monitoring and maintaining a security baseline. For us, that is a key element. The notifications are pretty good."
"In summary, we have just begun using this product but so far, it works well and we are satisfied with it."
"Everything from Microsoft is integrated. You receive regular reports on them all. You can push your reports, logs, and security alerts, which are all integrated. It is crucial that these solutions work natively together to deliver coordinated detection and response across our environment."
"The compliance capabilities of Microsoft Defender for Cloud Apps are quite extensive."
"Better logging allows us to find problems and take appropriate steps to lock them out."
"The integration within the entire Defender suite is highly valuable because it allows for communication between different components and offers pretty decent correlations."
"The product’s most valuable feature is SQL database."
"I like the web GUI/the management interface, and I also like the security of Microsoft because, as compared to other manufacturers, it's less complex and easy to understand and work with."
"From stability and availability standpoints, it is pretty good."
"The tool's most valuable feature is reporting. It helps us understand what's going on in our environment."
"Proofpoint Cloud App Security Broker has positively impacted my organization by resolving all of the security issues related to app security."
"The quarantine feature is the solution's most valuable aspect."
"The product is stable."
 

Cons

"I have heard they are doing DDoS filtering, but I am not certain if they are implementing it correctly."
"To scale up, a new iboss Node Blade Chassis must be purchased."
"File integrity monitoring would be very advantageous as an additional feature."
"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."
"I appreciate that iboss's single pane of glass console gives centralized visibility into web traffic, user activity, security policies, and alerts from one dashboard, allowing us to quickly investigate incidents and monitor policy violations without switching between multiple tools, improving operational efficiency; however, the dashboard customization and reporting could be more flexible."
"I think iboss could be improved by making reporting and dashboard customization more flexible, and simplifying troubleshooting policy issues."
"It is stable, but due to growth, it can sometimes be less stable than wanted."
"iboss can be improved because the integration could be better; you need to import all the sites that you access today, and there are a few problems whenever you import thousands of websites, making the integration process messy for the users."
"I would like to see them include more features in the older licenses. There are some features that are not available, such as preventing or analyzing cloud attacks."
"I would prefer to have filtering options incorporated within the policies, enabling the solution to perform tasks beyond mere blocking or allowing."
"There have been instances where the alerts generated have been false positives."
"In the future, I would like to see more plug-and-play capabilities that use AI to tell you what needs to be done. It would be helpful if it scanned our devices and made security suggestions, on a configuration basis."
"An area of Microsoft Defender for Cloud Apps that needs to be improved or enhanced is the reporting function. In the beginning, there was a good reporting function which gave us a sort of monthly overview report. But that has gone away."
"Improved communication and follow-up would be helpful. Sometimes, we don’t hear back after creating a ticket for a day or two."
"The technical support team has room for improvement."
"If this solution were more robust then it would be much more useful."
"Proofpoint Cloud App Security Broker should be cheaper."
"The TLS encryption needs to be improved. It's not state of the art."
"I think some of the hiccups that we had were with the number of domains that we had and how that had to be implemented in Proofpoint."
"They are priced significantly higher and less cost-effective than alternative options."
 

Pricing and Cost Advice

"It is expensive compared to one of its competitors."
"It is probably in line with other solutions, but I do not deal with the financial side."
"The overall pricing for iboss is very competitive and transparent."
"We had the cost of purchasing a new appliance along with the implementation and licensing costs. However, the following year, the cost of just licensing was similar to what was paid the previous year for a new appliance along with the implementation and licensing costs."
"We have not priced the solution recently, but they were competitive with other vendors in the past."
"It is not expensive, and it is also not cheap. iboss is priced right in the sweet spot for the number of features it offers."
"The pricing is fair."
"We utilize the Microsoft E5 licensing, which encompasses the entire Microsoft suite; however, it is costly."
"The E5 license offers everything bundled. People are moving to Microsoft because you buy one license and it gives you everything."
"The pricing is in the middle. It isn't too cheap or expensive compared to other antivirus or security products. It is priced according to industry standards."
"We are an MST and we do not pay for the solution. However, the price of the solution could be better."
"Our clients normally use the Microsoft E1 licensing, which is renewed yearly."
"The product's pricing seems fair."
"Microsoft offers bundle discounts and a pay-as-you-go option."
"The tool's most valuable feature is reporting. It helps us understand what's going on in our environment."
"We had an enterprise contract with them for about 32,000 users at that point, which has now grown."
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908,834 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
11%
Manufacturing Company
9%
Computer Software Company
8%
Construction Company
7%
Financial Services Firm
12%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise8
Large Enterprise10
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise13
Large Enterprise19
No data available
 

Questions from the Community

What needs improvement with iboss?
I think iboss could be improved by making reporting and dashboard customization more flexible, and simplifying troubl...
What is your primary use case for iboss?
I use iboss as a cloud-based secure web gateway to provide secure internet access, web filtering, and protect remote ...
What is your experience regarding pricing and costs for iboss?
My experience with iboss's pricing structure, setup cost, and licensing model has been positive, straightforward, and...
Which is the better security solution - Cisco Umbrella or Microsoft Cloud App Security?
Cisco Umbrella is an integral component of the Cisco SASE architecture. It integrates security in a single, cloud-nat...
What is your experience regarding pricing and costs for Microsoft Cloud App Security?
At the time of implementation, when the size of our organization was small, it was a more affordable product. Since a...
What needs improvement with Microsoft Cloud App Security?
The fidelity of the signal in Microsoft Defender for Cloud Apps has been a challenge in some areas. There have been i...
What needs improvement with Proofpoint Cloud App Security Broker?
Proofpoint Cloud App Security Broker can be improved with more AI features, as it could help. I feel it is fine to no...
What is your primary use case for Proofpoint Cloud App Security Broker?
My main use case for Proofpoint Cloud App Security Broker is to protect our applications on the cloud against securit...
What advice do you have for others considering Proofpoint Cloud App Security Broker?
My advice to others looking into using Proofpoint Cloud App Security Broker is that more AI features are needed. Proo...
 

Also Known As

iBoss Cloud Platform
MS Cloud App Security, Microsoft Cloud App Security
FireLayers, PCASB
 

Overview

 

Sample Customers

More than 4,000 global enterprises trust the iboss Cloud Platform to support their modern workforces, including a large number of Fortune 50 companies.
Customers for Microsoft Defender for Cloud Apps include Accenture, St. Luke’s University Health Network, Ansell, and Nakilat.
Emerging Technologies, HP, CSA, Perion
Find out what your peers are saying about Microsoft Defender for Cloud Apps vs. Proofpoint Cloud App Security Broker and other solutions. Updated: June 2026.
908,834 professionals have used our research since 2012.