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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 Feb 8, 2026

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
5.4
iboss improved bandwidth and security for remote work, but per-device fees and Mac agent delays prompted vendor alternatives.
Sentiment score
7.0
Microsoft Defender for Cloud Apps enhances security and efficiency, offering significant ROI with up to 60% savings and streamlined operations.
Sentiment score
7.2
Zscaler Zero Trust Exchange offers high ROI, enhancing security and productivity, reducing costs, and improving remote user experience significantly.
With iboss, whenever you turn on your laptop, the iboss agent automatically connects to the iboss cloud, enforcing all security policies. So with respect to the security side, it strengthens measures.
Senior Consultant Proxy Engineering at a financial services firm with 10,001+ employees
I have seen some cost effectiveness from iboss; it has reduced certain support requirements, making it a more hands-off solution.
Managing Director
The biggest return on investment so far has been visibility, knowing what we have in our environment.
Cloud and data protection engineer at a university with 10,001+ employees
As a small team, Microsoft Defender for Cloud Apps allowed us to manage systems with just one or two people.
Manager, Information Technology Security Compliance at a manufacturing company with 201-500 employees
We have at least saved the costs we had from the Netskope solution this year.
Security and Continuity Manager at Rolinco NV
When I see that I am trying to cut costs, for example, even when replacing Prisma, we have managed to save about over half a million dollars a year.
Cybersecurity Senior Program Manager at Dayforce
In terms of time savings, since users no longer manually connect to the VPN, access became seamless, improving user productivity, especially for remote users.
Team Lead, Technical Content Security at Valuepoint Systems
We don't have to purchase many components such as load balancers and proxy servers that were necessary in traditional setups.
Lead Engineer at FIS Global
 

Customer Service

Sentiment score
7.8
Iboss customer service receives mixed reviews, with praise for responsiveness and criticism for communication and resolution delays.
Sentiment score
6.4
Microsoft Defender for Cloud Apps support is praised for its responsiveness, though some users experience delays and resource access challenges.
Sentiment score
4.9
Zscaler's customer service is professional and knowledgeable, but complex issues can cause delays, affecting global user ratings.
They are very fast, responsive, and knowledgeable.
Head of Cybersecurity at SES Water
The quality of the support is fantastic.
Educational Technology Coordinator at a performing arts with 201-500 employees
We had promising discussions about resolving these issues, but no real action followed.
Network Administrator at a educational organization with 51-200 employees
Their customer service is pretty good, but it's frustrating to go through three or four channels before reaching the right person.
Cloud and data protection engineer at a university with 10,001+ employees
The support is excellent, and the speed of response is commendable.
Solutions Architect at a university with 51-200 employees
There were instances where the engineers were knowledgeable and helpful, but at other times it felt like a ping pong game, with unnecessary transfers until the right person was found.
Manager, Information Technology Security Compliance at a manufacturing company with 201-500 employees
The support engineers are technically knowledgeable, particularly for Zscaler Private Access related issues, providing clear guidance and documentation for troubleshooting.
Team Lead, Technical Content Security at Valuepoint Systems
Sometimes, support takes time since the solution has some bugs that need fixing.
architect at Tata Consultancy
They have provided the numbers and contact supports, and it is almost immediate.
Cybersecurity Senior Program Manager at Dayforce
 

Scalability Issues

Sentiment score
7.3
Iboss exhibits reliable scalability with easy resource expansion, accommodating high demand smoothly while maintaining performance and flexibility.
Sentiment score
7.4
Microsoft Defender for Cloud Apps offers scalable, seamless integration, and reliable management for organizations of all sizes and environments.
Sentiment score
7.7
Zscaler Zero Trust Exchange Platform's cloud-native architecture enables scalable, efficient, and seamless expansion for diverse enterprises with minimal hardware changes.
They are also able to meet on-demand requirements based on your contract with them, and can easily provide adequate resources and scalability.
Senior Consultant Proxy Engineering at a financial services firm with 10,001+ employees
I would rate it a nine out of ten for scalability.
If I start seeing sluggishness or anything like that, I just reach out to my rep, and they connect with their dev team, typically resolving it the same day.
Educational Technology Coordinator at a performing arts with 201-500 employees
For what I know about the log collector and how much data it can take in, it is super scalable and capable of handling high workloads.
Cloud and data protection engineer at a university with 10,001+ employees
Microsoft Defender for Cloud Apps is very scalable, provided you have the right subscription.
Solutions Architect at a university with 51-200 employees
In my experience, Microsoft Defender for Cloud Apps is good enough for small to medium businesses.
Manager, Information Technology Security Compliance at a manufacturing company with 201-500 employees
The only limitation I was mentioning is that it was unable to identify the sources of vulnerability, which they are going to embed by the mid of this year.
Cybersecurity Senior Program Manager at Dayforce
Zscaler Zero Trust Exchange Platform is highly scalable, primarily because it is built on a cloud-native, globally distributed architecture.
Team Lead, Technical Content Security at Valuepoint Systems
 

Stability Issues

Sentiment score
7.5
iboss is highly stable with 99% uptime, minor deployment challenges, and receives strong performance ratings of 7-9 out of 10.
Sentiment score
8.0
Microsoft Defender for Cloud Apps is highly stable, reliable, and maintains performance with minor, swiftly resolved incidents.
Sentiment score
7.8
Zscaler Zero Trust Exchange Platform offers high reliability and availability with minimal downtime, ensuring effective performance for enterprises.
It's been pretty solid; I've never had an outage with them, and if I ever had, it's only been once out of the seven years.
Educational Technology Coordinator at a performing arts with 201-500 employees
We've experienced zero downtime.
Head of Cybersecurity at SES Water
Our biggest problem with their service was it did not recognize the device despite our ClearPass sending information to the iboss box.
Network Administrator at a educational organization with 51-200 employees
I would rate it a ten because I have not experienced any stability issues so far with Defender for Cloud Apps.
Head of Security Operations at a computer software company with 51-200 employees
I would assess the stability and reliability of Microsoft Defender for Cloud Apps as stable
Network Engineer at Apexon
My impression on the stability and reliability of Microsoft Defender for Cloud Apps is that it is very stable.
Security and Continuity Manager at Rolinco NV
Zscaler Zero Trust Exchange Platform is very stable, especially in enterprise environments.
Team Lead, Technical Content Security at Valuepoint Systems
Zscaler Zero Trust Exchange Platform is very stable.
Cybersecurity Senior Program Manager at Dayforce
 

Room For Improvement

iboss struggles with Mac support, integration issues, performance limitations, and needs improvements in security features and user configurations.
Microsoft Defender for Cloud Apps seeks enhanced pricing, integration, user interface, automation, and multi-cloud support, while improving insights and management.
Zscaler's Zero Trust Platform faces cost, latency, and control issues, with users seeking better integration, support, and scalability.
It is not as intuitive as the rest of the platform.
Head of Cybersecurity at SES Water
We also had a problem with a transition when we upgraded from one appliance of theirs to another, but their engineer lost a good deal of our data.
Network Administrator at a educational organization with 51-200 employees
Our iboss subscription access should be more secure with an OTP or VPN etc.
For data loss prevention, it would be useful to be able to drill down into the kind of data being transferred over CloudApp.
Head of Security Operations at a computer software company with 51-200 employees
Defender typically connects to Entra ID, but we have local users on the cloud for database access, SSH, or RDS, and there is nothing produced by Defender regarding those local IAM users.
Network Engineer at Apexon
Microsoft Defender for Cloud Apps would benefit if Microsoft allows users to fine-tune false positives, enabling us to dismiss alerts or make adjustments so that such things don't trigger multiple times in the future.
Security delivery analyst at a tech vendor with 10,001+ employees
It would be beneficial to have more granular centralized visibility, allowing for quick end-to-end tracing of a user request from authentication to application access without switching between multiple views.
Team Lead, Technical Content Security at Valuepoint Systems
Zscaler Zero Trust Exchange Platform probably needs to be more efficient because scanning takes a lot of time.
Cybersecurity Senior Program Manager at Dayforce
They might be able to identify if something is missing with Zscaler.
architect at Tata Consultancy
 

Setup Cost

Iboss offers competitive and transparent pricing, often cheaper than Broadcom and Check Point, despite annual cost increases.
Microsoft Defender for Cloud Apps is seen as cost-effective for enterprises within Microsoft ecosystems, despite standalone pricing concerns.
Zscaler Zero Trust pricing varies, with flexible customization options and potential savings offsetting initial high costs for larger organizations.
It offers the same features you would get from a vendor that charges 250,000 British pounds for a fraction of the price.
Head of Cybersecurity at SES Water
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.
Network Administrator at a educational organization with 51-200 employees
Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern.
Managing Director
The pricing for Microsoft Defender for Cloud Apps is acceptable.
Solutions Architect at a university with 51-200 employees
My organization is currently revisiting pricing, but previously, the cost was a bit expensive, yet comparable to other solutions with similar functionalities and features.
Manager, Information Technology Security Compliance at a manufacturing company with 201-500 employees
It's not the cheapest, but also not the most expensive, placing it in the mid-level range.
IT Architect at a logistics company with 10,001+ employees
There is minimal setup cost since it is a cloud-delivered platform, eliminating the need to invest in additional hardware such as VPN gateways or maintain infrastructure.
Team Lead, Technical Content Security at Valuepoint Systems
Zscaler Zero Trust Exchange Platform is much, much cheaper when comparing price.
Cybersecurity Senior Program Manager at Dayforce
 

Valuable Features

iboss provides advanced security features, seamless cloud management, and scalability with user-friendly integration and robust threat protection capabilities.
Microsoft Defender for Cloud Apps integrates well, offering threat detection, management ease, shadow IT discovery, and robust security enhancements.
Zscaler Zero Trust Exchange Platform enhances security and user experience with seamless connectivity, scalability, and robust control features.
The solution's mental health function can detect if someone needs help.
Head of Cybersecurity at SES Water
It's given us a lot more visibility into our computer assets that may be infected with viruses and also shows us people who have unusually large uploads or might be engaging in high-risk activities, such as searches or going to sites not categorized by their web crawler.
Educational Technology Coordinator at a performing arts with 201-500 employees
iboss was the best solution for us because, no matter what domain you were in, everything is under a single pane of glass, which is exactly what we wanted.
Managing Director
It provides excellent suggestions and options for configuration; for example, it can track suspicious files getting uploaded to cloud resources on Azure based on their signatures, generating alerts for those files.
Security delivery analyst at a tech vendor with 10,001+ employees
The product recommends things that need to be blocked and allows for dynamic configuration, which cuts down on potential issues that might arise from going through lists and understanding what needs to be blocked.
Partner & Chief Executive Officer at a consultancy with 51-200 employees
The ability to sanction unsanctioned apps using Secure Score benchmarking, included in Cloud, is also beneficial.
Head of Security Operations at a computer software company with 51-200 employees
The solution is cloud-based with the latest inspection engines, which I find to be amazing.
architect at Tata Consultancy
We have excellent account management, smooth marketplace engagement, and processing in how my team or organization uses Zscaler Zero Trust Exchange Platform.
Manager, Software Development at a outsourcing company with 201-500 employees
Since we started using Zscaler Zero Trust Exchange Platform, it has auto-configuration, and wherever we have deployed the auto-configuration, we have not encountered any problem.
Cybersecurity Senior Program Manager at Dayforce
 

Categories and Ranking

iboss
Sponsored
Ranking in Cloud Access Security Brokers (CASB)
7th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
21
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)
5th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
42
Ranking in other categories
Advanced Threat Protection (ATP) (14th), Microsoft Security Suite (11th)
Zscaler Zero Trust Exchange...
Ranking in Cloud Access Security Brokers (CASB)
8th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
67
Ranking in other categories
Data Loss Prevention (DLP) (6th), Application Control (5th), ZTNA as a Service (1st), Secure Access Service Edge (SASE) (2nd), Remote Browser Isolation (RBI) (1st)
 

Mindshare comparison

As of April 2026, in the Cloud Access Security Brokers (CASB) category, the mindshare of iboss is 3.3%, up from 1.7% compared to the previous year. The mindshare of Microsoft Defender for Cloud Apps is 5.5%, down from 9.5% compared to the previous year. The mindshare of Zscaler Zero Trust Exchange Platform is 9.2%, up from 9.2% 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 Apps5.5%
iboss3.3%
Zscaler Zero Trust Exchange Platform9.2%
Other82.0%
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.
FV
Security and Continuity Manager at Rolinco NV
Deployment has been seamless with insightful data categorization and enhanced control
The features of Microsoft Defender for Cloud Apps that I have found most valuable include the overall portal view, with bubble graphs which give us insight into what goes where in the categorization, nowadays with Generative AI but all kinds of categorization, collaboration, etc. That central view of the portal is very useful for us. 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. Therefore, we can add more control, and we have already done so. This was not possible in the old solution, in the old CASB solution with Netskope. We now can see on the spot, and we do that almost weekly, what the end users are utilizing, which cloud providers or cloud apps they're using. The visibility into OAuth apps provided by Microsoft Defender for Cloud Apps is very good. The visibility into risk and risk management of our organization's Generative AI apps is very nice, as you can choose the category Generative AI and then see exactly what traffic has been going to and from Generative AI in the cloud. This makes us very insightful on what is used within the company. We have some policies on blocking specific Generative AI, and we use within our company one particular AI part, which is CoPilot of Microsoft. In this way, we can see what the end users are using other than CoPilot, and that makes us more in control. The effectiveness of the integration of Microsoft Defender for Cloud Apps with Defender XDR and defending against SaaS attacks is very intuitive. It works immediately if we create a new policy or in Purview or in Microsoft Defender for Cloud Apps, or when we make an app unsanctioned by blocking it, then it is almost immediately, or at least within a couple of hours, effective on all the endpoints where the EDR is running. This gives us much better control over things than before.
Vibin Thomas - PeerSpot reviewer
Team Lead, Technical Content Security at Valuepoint Systems
Zero trust access has transformed remote connectivity and now simplifies secure app usage
Zscaler Zero Trust Exchange Platform, especially Zscaler Private Access, is very strong, though there are a few areas where improvements can be made. One challenge observed is around initial troubleshooting and visibility. While Zscaler Private Access provides logs, it can sometimes take time to pinpoint the exact cause of access issues, especially in complex environments with multiple policies and identity integration. Another area is the dependency on identity and connector health. Since Zscaler Private Access is heavily reliant on app connectors and identity providers, any issues with these components can impact user access, making proper monitoring critical. During the initial setup, policy configuration and application onboarding require careful planning, especially for larger environments with many applications. These challenges are manageable with proper design and monitoring. Overall, the platform delivers strong security and user experience. I would recommend a few improvements, especially around user interface, reporting, and troubleshooting experience. From a user interface perspective, while the platform is powerful, the policy configuration and navigation can feel complex, especially for new users. A more simplified and intuitive layout for policy mapping and application access would help reduce the learning curve. In terms of reporting, Zscaler Private Access provides logs, but having more built-in customizable dashboards and analytics would be very helpful. Better visibility into user access patterns, application performance, and real-time troubleshooting insights would improve operational efficiency. From a support and troubleshooting standpoint, it would be beneficial to have more granular centralized visibility, allowing for quick end-to-end tracing of a user request from authentication to application access without switching between multiple views. These improvements would make the platform even more efficient, especially for large-scale enterprise environments.
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
9%
Manufacturing Company
9%
Construction Company
7%
Financial Services Firm
12%
Computer Software Company
9%
Manufacturing Company
9%
Comms Service Provider
6%
Financial Services Firm
12%
Manufacturing Company
10%
Computer Software Company
9%
Insurance Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise7
Large Enterprise8
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise10
Large Enterprise19
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise12
Large Enterprise44
 

Questions from the Community

What needs improvement with iboss?
iboss can increase security in cyberspace. I have heard they are doing DDoS filtering, but I am not certain if they a...
What is your primary use case for iboss?
I use iboss for corporate VPN and all the corporate VRF, with basically all user traffic proxying to the internet.
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 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 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 needs improvement with Zscaler SASE?
The solution needs to improve a lot of aspects.
What is your primary use case for Zscaler SASE?
We are using Zscaler Zero Trust Exchange for its Zscaler Internet Access service. It provides web security, DLP, data...
 

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: April 2026.
890,088 professionals have used our research since 2012.