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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
6.9
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) (6th)
Microsoft Defender for Clou...
Ranking in Cloud Access Security Brokers (CASB)
4th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
42
Ranking in other categories
Advanced Threat Protection (ATP) (17th), 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 September 2026, in the Cloud Access Security Brokers (CASB) category, the mindshare of iboss is 4.5%, up from 2.0% compared to the previous year. The mindshare of Microsoft Defender for Cloud Apps is 5.8%, down from 8.0% 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 Apps5.8%
iboss4.5%
Proofpoint Cloud App Security Broker0.9%
Other88.8%
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

"Content filtering is the most useful feature of iboss."
"Its initial setup was straightforward."
"I would say iboss is a very good product; its scalability is very good, and it's seamless for the user."
"We were impressed by the solution's mental health function, which can detect if someone needs help. It scans what users are browsing and flags warning signs so we can check to see if they are okay. We've had to use it a couple of times."
"This product is solid, fairly easy to use, and reliable."
"The security aspect of the solution, particularly the malware behind it, is excellent."
"Deploying iboss leads to good return on investment, estimated around 70% to 80%."
"It was a very easy product to install. It can be deployed very fast."
"The impact of Microsoft Defender for Cloud Apps on our organization's ability to assess and manage app related risks has been significant because we have more visibility."
"The product’s most valuable feature is SQL database."
"The major benefit is that it is a Microsoft tool, so if you're in a Microsoft ecosystem, this is the best tool that you can get in the market."
"One of the most valuable features is auditing. Some of the other protection services have issues with auditing. Microsoft Defender for Cloud has an excellent auditing technique that helps us avoid the risk of filtering or information loss. You can use different tools to guarantee these things. It allows you to conduct an in-depth exploration of applications, users, and files that are harmful or suspicious. You can also enhance your security setup by creating personalized rules or policies that help you better control traffic in the cloud."
"Threat detection is its key feature, and that's why we use this tool. It gives an alert if a PC is attacked or there is any kind of anomaly, such as there is a spike in sending emails or we see an unauthorized website being accessed. So, it keeps us on our toes. We get to know that there is something wrong, and we can isolate the user and find any issues with it. So, threat detection is very robust in this tool."
"Overall, Microsoft Defender for Cloud Apps is very convenient for investigation, in terms of security breaches, or if there is file exfiltration."
"The integration within the entire Defender suite is highly valuable because it allows for communication between different components and offers pretty decent correlations."
"The most valuable feature is the ease of management; the management is cloud-based and we can work inside or outside on public networks."
"Proofpoint Cloud App Security Broker has positively impacted my organization by resolving all of the security issues related to app security."
"From stability and availability standpoints, it is pretty good."
"The quarantine feature is the solution's most valuable aspect."
"The tool's most valuable feature is reporting. It helps us understand what's going on in our environment."
"The product is stable."
 

Cons

"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."
"To scale up, a new iboss Node Blade Chassis must be purchased."
"The reporting feature needs improvement."
"The solution could be stronger on the integration side and offer more cloud applications like G Suite or Oracle."
"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 am currently doing a PoC of the zero trust aspect of it. Compared to other similar solutions, it is hard to get around each feature. It takes a while to get used to it."
"The area I would like to see improvement in is the ability with in the reporter to navigate directly to the content the user is traversing. It is kind of there, but it's not perfect. Quite frequently, I receive links that lead me to pages with error messages."
"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 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."
"The integration with macOS operating systems needs to be better."
"A significant improvement I would like to see is the integration into a single pane of glass, which would allow me to view everything in one place rather than having to switch between different areas."
"Generally, the pricing can always be improved along with the management system."
"Defender for Cloud apps is primarily useful for Azure apps. It has limited capabilities for applications based on other cloud platforms."
"Defender could integrate better with multi-cloud and hybrid environments. It requires some additional configuration to ingest data from non-Azure environments and integrate it with Sentinel."
"There are certain areas where the product could improve, such as some functionalities that did not work as expected."
"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."
"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."
"The TLS encryption needs to be improved. It's not state of the art."
"Proofpoint Cloud App Security Broker should be cheaper."
"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."
"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."
"The overall pricing for iboss is very competitive and transparent."
"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."
"It is probably in line with other solutions, but I do not deal with the financial side."
"I'm not totally involved in the pricing part, but I think its pricing is quite aggressive, and its price is quite similar to Netskope. Netskope has separate licensing fees or additional charges if you want to monitor certain SaaS services, whereas, with MCAS, you get 5,000 applications with their Office 365. It is all bundled, and there's no cost for using that. You only have the operational costs. In the country I am in, it is a bit difficult to get people with the required skill sets."
"Its pricing is on the higher side. Its price is definitely very high for a small-scale company. As an enterprise client, we do get benefits from Microsoft. We get a discounted price because of the number of users we have in our company. We have a premier package, and with that, we do get a lot of discounts. There are no additional costs. It only comes in the top-tier packages. Generally, the top-tier license is the best license that you can get for your organization. If you want, you can buy it separately, but that's not a good idea."
"The E5 license offers everything bundled. People are moving to Microsoft because you buy one license and it gives you everything."
"The pricing is fair."
"It has fair pricing. You pay for what you get. As far as I know, there are no costs in addition to the standard licensing fee."
"It is a little bit expensive. When you want to have the complete package with Office 365, Defender, and everything else, it is expensive."
"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."
"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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913,806 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
11%
Manufacturing Company
9%
Comms Service Provider
8%
Computer Software Company
7%
Financial Services Firm
13%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
7%
Financial Services Firm
17%
Outsourcing Company
13%
Computer Software Company
12%
Manufacturing Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
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: September 2026.
913,806 professionals have used our research since 2012.