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Microsoft Defender for Cloud Apps vs Zscaler Zero Trust Exchange Platform comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jul 27, 2025

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)
7th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
19
Ranking in other categories
Secure Web Gateways (SWG) (5th), Internet Security (3rd), Web Content Filtering (1st), ZTNA as a Service (8th), Secure Access Service Edge (SASE) (8th)
Microsoft Defender for Clou...
Ranking in Cloud Access Security Brokers (CASB)
4th
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
40
Ranking in other categories
Advanced Threat Protection (ATP) (14th), Microsoft Security Suite (12th)
Zscaler Zero Trust Exchange...
Ranking in Cloud Access Security Brokers (CASB)
5th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
64
Ranking in other categories
Data Loss Prevention (DLP) (2nd), Application Control (4th), ZTNA as a Service (1st), Secure Access Service Edge (SASE) (1st), Remote Browser Isolation (RBI) (1st)
 

Mindshare comparison

As of October 2025, in the Cloud Access Security Brokers (CASB) category, the mindshare of iboss is 2.3%, up from 1.6% compared to the previous year. The mindshare of Microsoft Defender for Cloud Apps is 8.8%, down from 11.5% compared to the previous year. The mindshare of Zscaler Zero Trust Exchange Platform is 10.0%, down from 12.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Access Security Brokers (CASB) Market Share Distribution
ProductMarket Share (%)
Microsoft Defender for Cloud Apps8.8%
Zscaler Zero Trust Exchange Platform10.0%
iboss2.3%
Other78.9%
Cloud Access Security Brokers (CASB)
 

Featured Reviews

Matt Crockford - PeerSpot reviewer
It's easy to roll out, and their understanding of our business made it seamless
One aspect we value about iboss is its simplicity. Their customer service is brilliant, and they are super responsive and knowledgeable. It's easy to roll out, and their understanding of our business made it seamless. 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. The user interface is highly intuitive. Our IT team picked it up with minimal training. It's arranged so that it's easy to find where things are. Another advantage is the single pane of glass console, which gives you visibility into what's happening. We're not fully there yet because we haven't implemented zero trust, but we're excited about the possibilities from the demos we've seen. We launched a POC of iboss' ChatGPT Risk Protection feature two weeks ago. AI is a great tool, but you need to be careful what you put into it. My biggest fear is employees inputting sensitive corporate information or customer PII data into one of these chatbots. I was impressed by our trial of the feature. It's exactly what we wanted. Now, when a user goes to ChatGPT, there's a banner warning them not to share information, and we can block conversations containing customer data like bank details and email addresses. I don't want to stop people from using it, but we need visibility. We've only tried it on a test group of 15 people. You can configure it to look for specific keywords or integrate it with your DLP policy if you have that configured
Abdulrahman Muhammadi - PeerSpot reviewer
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.
Sumit Bhanwala - PeerSpot reviewer
Cloud-based platform simplifies device and data center management
I find it to be good. The solution is cloud-based with the latest inspection engines, which I find to be amazing. We are less dependent on data centers and device management, which reduces our efforts significantly. It improves our device management, data center management, and updating devices. We need fewer engineers for this management, and it reduces time and efforts for data center management, device upgrades, and IT support.

Quotes from Members

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

Pros

"The solution has massively improved our security posture, giving us full visibility into what our staff does online."
"Its initial setup was straightforward."
"iboss is pretty scalable. They provide good support. The case managers you work with to coordinate what you need are pretty good."
"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."
"First of all, the security policies are essential. I do not have to rely solely on Active Directory for our users."
"We chose iboss for both zero trust and proxy (SWG) because their SWG was superior."
"Granular setup, which was able to set different levels of filters using the OUs in the AD."
"Our primary use case for this product is DLP,"
"The most effective features for data protection are data loss prevention (DLP) and data classification."
"Better logging allows us to find problems and take appropriate steps to lock them out."
"The most valuable feature of Microsoft Defender for Cloud Apps is that we are primarily using only the Defender for Cloud on the Azure Cloud."
"Microsoft Defender for Cloud Apps is very comprehensive, providing a complete 360-degree view of applications within an organization."
"The most valuable feature is the ease of management. It's important."
"Defender helps us control which applications are being used and gain more security insight into remote and hybrid users based on user identity and log in location. You can also integrate Defender for Cloud Apps with Defender for Endpoint to extend its capabilities."
"The ability to sanction unsanctioned apps using Secure Score benchmarking, included in Cloud, is also beneficial."
"The compliance capabilities of Microsoft Defender for Cloud Apps are quite extensive."
"Zscaler Private Access is a platform that eliminates the complexity of VPN configuration."
"The product’s most valuable features are data discovery, activity control, and zero trust exchange."
"The solution is the best for storage."
"The most valuable feature of Zscaler Private Access is the categorization of the dynamic URLs which keeps the customer's environment protected. The threats and the malware are correctly categorized."
"The ZPA is a unique feature which offers VPN along with all the additional security needed."
"The scalability of the solution is great."
"The most valuable features of Zscaler SASE include web filtering, application control, and the private access configuration."
"The product's most valuable features are cloud-based services and secure internet access. We don't have to set up any physical appliances."
 

Cons

"Sometimes the agent stops working in iboss, and we have to reinstall the agent."
"Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern."
"For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company ExxonMobil."
"I'd like to see them accelerate development on the security side, particularly around data loss prevention."
"The reporting feature needs improvement. It doesn't give you the expected results. It is quite difficult to get the specific reports needed, and it is not as intuitive as the rest of the platform."
"Sometimes, obviously, there are bugs."
"Its pricing could be better."
"If they could implement an extra security layer preventing access to iboss from the open internet, it would be great."
"Licensing cost is a significant concern. With Defender Plan 1, Microsoft Defender for Cloud Apps comes with a pay-per-use model."
"We are having trouble with our continuous reporting configuration and struggling with configuring the collector properly with our log parsing. We've also faced difficulties getting support for this issue. It's taken us months to figure this out after going through a couple of different support channels."
"I want them to enhance in-session policy."
"The insights could be improved, especially in reporting. While it is possible for me to see the usage from different cloud apps, determining if critical data has been uploaded or if it is just normal transport data is difficult."
"It doesn't actually decrease the time to respond. This has been an issue with Microsoft recently. Sometimes, there is a delay when it comes to getting an alert policy email... Sometimes it takes two or three hours for that email to be sent."
"They should continue integration with all other Microsoft security-related products. The integration with all the other products is still ongoing."
"Microsoft Defender for Cloud Apps’s technical support services needs improvement."
"I would like for it to be available on Mac and for it to support all of the features of Microsoft financing products. It is really for Windows."
"The product is not reliable."
"There aren't really any missing features that I have witnessed."
"It's an expensive solution."
"There are latency issues with the solution. They are small, however, they are there when you compare it to other vendors."
"The pre-defined dictionaries could be improved."
"User management can be improved."
"There could be a feature to view the VPN tunnel activities in terms of configuration."
"What could be improved in Zscaler Private Access is its notification. For example, if there's a speed issue, there should be a pop-up that alerts the user about it. If there is a network quality issue, for example, it isn't good enough to connect to, or the network quality is bad, there should be a notification from the solution. Zscaler Private Access also needs improvement in terms of its interface and security."
 

Pricing and Cost Advice

"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."
"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."
"We have not priced the solution recently, but they were competitive with other vendors in the past."
"It is expensive compared to one of its competitors."
"Microsoft offers bundle discounts and a pay-as-you-go option."
"We have an educational licensing agreement. It's a customer agreement for multiple years."
"The pricing is a little bit high but right now, we are okay with it because of the compatibility with Office 365, Teams, and Azure AD."
"Where we are right now, this is an acceptable pricing. I would like to see more transparency given to the end user. The end user given to us is via the cloud service provider. There are different programs and license models. Some include this, and some include that. It is all over the place. There can be a little more consistency or simplification in the pricing so that your parts list is not ten pages long, and you are not trying to determine, "If I have an E3, does this cover that?", or "Do I need to pay separately for the license?" Simplification would probably be better."
"We utilize the Microsoft E5 licensing, which encompasses the entire Microsoft suite; however, it is costly."
"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."
"Our clients normally use the Microsoft E1 licensing, which is renewed yearly."
"The price could be better and should be reconsidered."
"The technical support is good."
"It has been relatively reasonable for what it does. Some of the additional license costs based on the advanced next-generation firewall functions are quite high, and they should have certain features ready and available as a baseline rather than having to purchase additional licenses for it. Overall, the cost seems reasonable."
"Zscaler CASB is an expensive solution."
"The product is a little more expensive than other tools."
"My company is a Zscaler Private Access partner, so the customers pay for the license fees."
"Zscaler DLP solution is expensive, with a fixed pricing structure that is billed annually and monthly. There are no additional costs for licenses."
"The cost is expensive. It depends on the number of users."
"Zscaler Private Access is extremely expensive."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
11%
Manufacturing Company
9%
Government
6%
Computer Software Company
12%
Financial Services Firm
10%
Manufacturing Company
9%
Government
7%
Computer Software Company
13%
Financial Services Firm
13%
Manufacturing Company
9%
Insurance Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise6
Large Enterprise5
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise10
Large Enterprise18
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise11
Large Enterprise41
 

Questions from the Community

What needs improvement with iboss?
For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company Exxon...
What is your primary use case for iboss?
Previously when I used iboss, we did the POC for iboss for ExxonMobil. Four or five people wanted to move from our ol...
What is your experience regarding pricing and costs for iboss?
Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern. There are cheaper alte...
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 do you like most about Microsoft Cloud App Security?
It does a great job of monitoring and maintaining a security baseline. For us, that is a key element. The notificatio...
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 is the better solution - Prisma Access or Zscaler Private Access?
We looked into Prisma Access before choosing Zscaler Private Access (ZPA). Palo Alto’s Prisma Access is a secure ac...
What do you like most about Zscaler SASE?
The most valuable features of Zscaler Private Access are reliability, scalability, and availability.
What needs improvement with Zscaler SASE?
The solution needs to improve a lot of aspects.
 

Also Known As

iBoss Cloud Platform
MS Cloud App Security, Microsoft Cloud App Security
Zscaler SASE, Zscaler DLP, Zscaler CASB, Zscaler CSPM, Zscaler Browser Isolation, Zscaler Posture Control
 

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.
Siemens, AutoNation, GE, NOV
Find out what your peers are saying about Microsoft Defender for Cloud Apps vs. Zscaler Zero Trust Exchange Platform and other solutions. Updated: September 2025.
869,952 professionals have used our research since 2012.