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

Microsoft and Zscaler are both solutions in the Cloud Access Security Brokers (CASB) category. Microsoft is ranked #4 with an average rating of 8.5, while Zscaler is ranked #9 with an average rating of 8.5. Microsoft holds a 6.5% mindshare in CASB, compared to Zscaler’s 9.0% mindshare. Additionally, 100% of Microsoft users are willing to recommend the solution, compared to 98% of Zscaler users who would recommend it.

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Executive SummaryUpdated on Feb 8, 2026

Microsoft Defender for Cloud Apps and Zscaler Zero Trust Exchange Platform compete in the cloud security category. Microsoft Defender appears to have an upper hand in integration and ease of use within the Microsoft ecosystem, while Zscaler excels in providing flexible security solutions.

Features: Microsoft Defender for Cloud Apps is noted for seamless integration, comprehensive threat detection, and effective data protection within Microsoft tools. Zscaler Zero Trust Exchange Platform offers robust flexibility through features like Internet Access and Private Access solutions, eliminating the need for ongoing VPN re-authentication and ensuring scalable performance.

Room for Improvement: Microsoft Defender for Cloud Apps could enhance macOS integration, improve third-party solution compatibility, and reduce false positives. Zscaler Zero Trust Exchange Platform needs to address scalability, improve speed, and offer better configuration flexibility with regex usage for data matching and enhance support responsiveness.

Ease of Deployment and Customer Service: Microsoft Defender for Cloud Apps is praised for easy deployment in Microsoft environments but receives mixed customer service reviews. Zscaler Zero Trust Exchange Platform is well-regarded for cloud deployment ease yet can face latency issues outside a single-tenant setup. Zscaler generally receives favorable support but seeks improved consistency.

Pricing and ROI: Microsoft Defender for Cloud Apps is bundled with Microsoft licenses, offering competitive pricing and visible ROI due to comprehensive features. Zscaler Zero Trust Exchange Platform, while considered more expensive, provides flexible user-based pricing and good ROI for security-focused organizations.

To learn more, read our detailed Microsoft Defender for Cloud Apps vs. Zscaler Zero Trust Exchange Platform Report (Updated: February 2026).

Buyer's Guide

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

February 2026

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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

Mindshare comparison

As of February 2026, in the Cloud Access Security Brokers (CASB) category, the mindshare of iboss is 2.5%, up from 1.7% compared to the previous year. The mindshare of Microsoft Defender for Cloud Apps is 6.5%, down from 10.1% compared to the previous year. The mindshare of Zscaler Zero Trust Exchange Platform is 9.0%, down from 9.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Cloud Access Security Brokers (CASB) Market Share Distribution
Product	Market Share (%)
Microsoft Defender for Cloud Apps	6.5%
iboss	2.5%
Zscaler Zero Trust Exchange Platform	9.0%
Other	82.0%

Cloud Access Security Brokers (CASB)

Featured Reviews

reviewer2701851

Managing Director

Enhances web security with a single pane of glass and flexible deployment

I don't see any need for improvement; one of the really good things about iboss as a company is that they listen to customer feedback. I have suggested enhancements, and they are responsive, making changes for the better, and they do a lot of testing. To improve iboss, although we haven't used it, we considered the VPN solution that comes with the highest tier licensing, which includes DLP and various other add-ons. We prefer using another product which automatically logs you back onto your network when turning on your PC. With iboss, the connection is manual, which doesn't meet our needs. Additionally, sizing can be tricky because, although the initial recommendations may seem adequate, actual usage may require more gateways than anticipated.

Read full review

Frank Van Der Spek

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.

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Zaheer_Khan

Cybersecurity Senior Program Manager at Dayforce

Secure access has improved remote work and has reduced vulnerabilities across our workforce

Zscaler Zero Trust Exchange Platform probably needs to be more efficient because scanning takes a lot of time. Some vulnerabilities create issues, and when we wanted to identify the source of the vulnerabilities, specifically focusing on mobile ID and related areas, it was unable to provide assistance. However, according to discussions with Zscaler Zero Trust Exchange Platform, they said that by the end of mid-2026, they are exploring these features, and probably those features can be incorporated or embedded into this particular system. That is the only major negative point.In terms of responses, Zscaler Zero Trust Exchange Platform is good. In terms of controlling vulnerability, it is good. The only cons I have noticed is that it is a bit slower, and sometimes it is unable to identify the source. These are the key areas for improvement.

Read full review

Quotes from Members

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

Pros

"Its initial setup was straightforward."

"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."

"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."

"Granular setup, which was able to set different levels of filters using the OUs in the AD."

"Valuable features: Within the filter: Controls (Web categories, applications, and Allow/Block list) and Network (local Subnets). Within the reporter: Logs (Event Log) and Reports."

"The solution has massively improved our security posture, giving us full visibility into what our staff does online."

"It was a very easy product to install. It can be deployed very fast."

More iboss pros

"The most valuable feature is the seamless integration across different clouds."

"The ability to prevent users from using certain applications is one of the most valuable features. It doesn't require any configuration for implementation from the client perspective. It just works right away and gives you the information you need."

"The most valuable feature is the alerting system."

"Better logging allows us to find problems and take appropriate steps to lock them out."

"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."

"Defender for Cloud Apps has given us good visibility regarding what we've allowed into our environment until now."

"Microsoft Defender for Cloud Apps is very comprehensive, providing a complete 360-degree view of applications within an organization."

"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."

More Microsoft Defender for Cloud Apps pros

"The most valuable feature is the manageability of the micro tunnels."

"The ZPA is a unique feature which offers VPN along with all the additional security needed."

"Zscaler Private Access is a platform that eliminates the complexity of VPN configuration."

"What I find most valuable in Zscaler Private Access is that it's a VPN. Its connectivity as a VPN is its most valuable feature."

"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."

"I find all Zscaler Private Access features valuable because each replaces flawed technologies, such as EPAs being replacements for VPN and PR as a replacement for PAM, so I can't mention only one valuable feature. Overall, Zscaler Private Access is a good solution."

"The solution is cloud-based with the latest inspection engines, which I find to be amazing."

"The product's most valuable features are cloud-based services and secure internet access. We don't have to set up any physical appliances."

More Zscaler Zero Trust Exchange Platform pros

Cons

"Fold that in with the risk intelligence they're getting from all of the different subscriptions they are a part of. Now, these security companies subscribe to things like emerging threats, databases, etc. You can fold all this intelligence to decide what's happening on an endpoint. I would love to see them start moving into that space. That would compete directly with Microsoft. Maybe that's why they haven't. Having that ability native within the solution would be great. The other area in which I would love to see improvement is more detailed descriptions of why they block websites."

"SSL decryption: We had issues with learners using apps instead of using web browsers. This type of encryption is tough for any appliance in a BYOD environment."

"To scale up, a new iboss Node Blade Chassis must be purchased."

"File integrity monitoring would be very advantageous as an additional feature."

"For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company ExxonMobil."

"Iboss is growing so fast that it is often hard for them to keep up with the challenges."

"If they could implement an extra security layer preventing access to iboss from the open internet, it would be great."

"Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern."

More iboss cons

"We are having trouble with our continuous reporting configuration and struggling with configuring the collector properly with our log parsing."

"The documentation could be improved as it is not updated immediately when Microsoft makes changes. Users must wait a few weeks for the changes to be reflected in the documentation."

"The product is very good so far, however, it would be better if it could include more up-to-date threat protection."

"I want them to enhance in-session policy."

"We sometimes get errors when we create policies, which is somewhat annoying because some policies stop working due to misconfigurations. We find this challenging because it limits our options for troubleshooting an issue."

"I would prefer to have filtering options incorporated within the policies, enabling the solution to perform tasks beyond mere blocking or allowing."

"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."

"Microsoft Defender for Cloud Apps' initial setup was quite technical but we were prepared. The time of the implementation depends on the job and how many users are being set up."

More Microsoft Defender for Cloud Apps cons

"Having a Zscaler-specific device could streamline this process and provide a more consistent user experience across diverse branches."

"We'd like to have two-factor authentication that is quite simple."

"You won't find anything that can help you with the configuration part and other areas related to the product if you search for proper or exact details of Zscaler Cloud DLP online in very easy language."

"The tool must provide IP-blocking features."

"Sometimes, support takes time since the solution has some bugs that need fixing."

"The solution's granularity should be improved because it has limited granular options to control, visible, allow, block, delay, and receive."

"It needs to offer SSO, single sign-on, and items of that nature."

"It has a limitation, if you are creating a rule or something for a web application or something, you could only add five users, not more than that. Five or four users are only included in a rule. If you want to create a rule for more than five or four users, you have to go through other methods, not particularly with the application. Working within the application with this method would be quite easy as compared to listing a URL or a normal IP address."

More Zscaler Zero Trust Exchange Platform cons

Pricing and Cost Advice

"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."

"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."

"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."

"We utilize the Microsoft E5 licensing, which encompasses the entire Microsoft suite; however, it is costly."

"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 pricing is fair."

"Our clients normally use the Microsoft E1 licensing, which is renewed yearly."

"The cost could be improved when you need to pay for anything. For example, refreshing files takes time to load, though it may be my Internet. To improve the refresh time, Microsoft says that we need to pay for a Premium license, and I don't like paying for things that help make a solution better."

"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."

"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."

"The product's pricing seems fair."

More Microsoft Defender for Cloud Apps pricing and cost advice

"Zscaler SASE software is quite expensive compared to other solutions"

"The cost is expensive. It depends on the number of users."

"It's an affordable solution"

"It's expensive currently. But when purchasing for a large number of users, there's room to negotiate. It's really up to the procurement team."

"The product has reasonable pricing."

"It is an auto-renewal subscription service."

"The solution is expensive."

"The licensing model for Zscaler Cloud DLP allows you to only buy what you need. You don't need to buy it as a whole, so it's good."

More Zscaler Zero Trust Exchange Platform pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

11%

Computer Software Company

10%

Manufacturing Company

Comms Service Provider

Financial Services Firm

11%

Computer Software Company

11%

Manufacturing Company

Government

Financial Services Firm

13%

Computer Software Company

11%

Manufacturing Company

10%

Insurance Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	6
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	15
Midsize Enterprise	10
Large Enterprise	19

By reviewers
Company Size	Count
Small Business	16
Midsize Enterprise	12
Large Enterprise	42

Questions from the Community

What needs improvement with iboss?

For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company Exxon...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

What do you like most about Zscaler SASE?

The most valuable features of Zscaler Private Access are reliability, scalability, and availability.

See all answers

What needs improvement with Zscaler SASE?

The solution needs to improve a lot of aspects.

See all answers

Comparisons

Netskope vs iboss

Compared 12% of the time

Prisma Access by Palo Alto Networks vs iboss

Compared 10% of the time

FortiSASE vs iboss

Compared 7% of the time

Cisco Umbrella vs iboss

Compared 7% of the time

Akamai Secure Internet Access Enterprise vs iboss

Compared 3% of the time

More iboss Competitors

Zscaler Internet Access vs Microsoft Defender for Cloud Apps

Compared 13% of the time

Cisco Umbrella vs Microsoft Defender for Cloud Apps

Compared 11% of the time

Netskope vs Microsoft Defender for Cloud Apps

Compared 10% of the time

Prisma Access by Palo Alto Networks vs Microsoft Defender for Cloud Apps

Compared 7% of the time

Fortinet FortiCASB vs Microsoft Defender for Cloud Apps

Compared 2% of the time

More Microsoft Defender for Cloud Apps Competitors

Cato SASE Cloud Platform vs Zscaler Zero Trust Exchange Platform

Compared 9% of the time

Prisma Access by Palo Alto Networks vs Zscaler Zero Trust Exchange Platform

Compared 5% of the time

FortiSASE vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

Check Point Harmony SASE (formerly Perimeter 81) vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

Microsoft Purview Data Loss Prevention vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

More Zscaler Zero Trust Exchange Platform Competitors

Product Reports

Buyer's Guide

iboss

January 2026

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Buyer's Guide

Microsoft Defender for Cloud Apps

January 2026

Microsoft Defender for Cloud Apps report

Download Microsoft Defender for Cloud Apps product report

Buyer's Guide

Zscaler Zero Trust Exchange Platform

January 2026

Zscaler Zero Trust Exchange Platform report

Download Zscaler Zero Trust Exchange Platform product report

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

Iboss offers a comprehensive cloud-based security platform valued for its scalability and autonomous features, ensuring robust security with easy deployment and management capabilities.

Renowned for its robust security architecture, Iboss integrates seamlessly within diverse networks, delivering efficient granular filtering and advanced content categorization. Its single pane of glass console provides ease of management, allowing rapid scalability suitable for rapidly deploying environments. Operates in BYOD setups due to inline filtering without device installation. Integration with cloud-based applications enhances user control, and features like SASE, SSL inspection, and ChatGPT risk protection stand as highlights. Despite its strengths, users have pointed out areas for enhancement like direct navigation in reports, SSL decryption, and better cloud integration while having room to improve data loss prevention.

What are the most important features of Iboss?

Scalability: Supports rapid deployment across diverse networks.
SASE: A consolidated approach to secure access.
SSL Inspection: Ensures safe data transmission.
Granular Filtering: Detailed control over accessible content.
Single Pane Management: Unifies control through a centralized console.

What benefits should users consider in reviews?

Cost-effectiveness: Offers competitive pricing with robust features.
Autonomous Operation: Reduces management overhead.
Responsive Support: Provides assistance when needed.
Flexible Deployment: Available for both cloud and on-premises environments.

The usage of Iboss spans educational institutions, specifically K-12, to enforce internet policies, protect data, and support remote work environments. It provides web filtering and security frameworks to ensure safe browsing. Its platform-as-a-service model offers flexibility for both cloud-based and on-premises requirements, integrating seamlessly to deliver enhanced security features suitable for various deployment needs including zero trust, CASB, and network security for work-from-home setups.

iboss

Microsoft Defender for Cloud Apps is a comprehensive security solution that provides protection for cloud-based applications and services. It offers real-time threat detection and response, as well as advanced analytics and reporting capabilities. With Defender for Cloud Apps, organizations can ensure the security of their cloud environments and safeguard against cyber threats. Whether you're running SaaS applications, IaaS workloads, or PaaS services, Microsoft Defender for Cloud Apps can help you secure your cloud environment and protect your business from cyber threats.

Microsoft Defender for Cloud Apps Benefits:

Provides comprehensive security for cloud applications
Integrates with other Microsoft security tools
Easy to use and deploy
Provides real-time threat detection and response
Strong protection against phishing attacks and other common threats
Highly customizable to meet specific needs of different organizations

Microsoft Defender for Cloud Apps Use Cases:

Governance, authentication, security, and compliance.
Detects shadow IT and anomalous user behavior
Controls access to applications
Provides auditing and filtering setups
Used for end-user compute devices, file monitoring, user investigation, and activity
Used for data governance, threat detection, and getting visibility over cloud applications
Used to identify information about applications beyond organizational boundaries
Prevent exfiltration and data filtration of corporate data
Used to deal with spam emails and detect shadow IT

Reviews from Real Users

Ram-Krish, Cloud Security & Governance at a financial services firm, says that Microsoft Defender for Cloud Apps "Integrates well and helps us in protecting sensitive information, but takes time to scan and apply the policies and cannot detect everything we need".

PeerSpot user, Senior Cloud & Security Consultant at a tech services, writes that Microsoft Defender for Cloud Apps "Great for monitoring user activity and protecting data while integrating well with other applications".

Simon Burgess,Infrastructure Engineer at SBITSC, states that Microsoft Defender for Cloud Apps is "A fluid, intelligent product for great visibility, centralized management, and increased uptime".

Microsoft

Zscaler Zero Trust Exchange enhances security with seamless cloud-based connectivity and VPN-less operation, offering integration with multiple identity providers and advanced security features, suitable for remote work environments.

Zscaler Zero Trust Exchange provides secure, adaptive connectivity without traditional VPNs, allowing organizations to replace legacy systems and bolster remote work security. The platform offers cloud-based protection, single sign-on, dynamic URL categorization, and scalable solutions. While advanced security features like DLP and threat protection enhance data protection, users may face issues with speed, connectivity, and some customization options. Integration challenges, latency due to multi-tenant hosting, reporting delays, and licensing costs require consideration. It supports secure internet access and private application security, ensuring traffic control and data compliance.

What are the key features of Zscaler Zero Trust Exchange?

VPN-less Connectivity: Enables secure remote access without traditional VPNs.
Cloud-based Security: Offers scalable protection utilizing cloud infrastructure.
Single Sign-On: Integrates with multiple identity providers for streamlined access.
Dynamic URL Categorization: Provides real-time URL filtering to enhance security.
Advanced Threat Protection: Detects and mitigates sophisticated threats effectively.
Customizable Policies: Allows tailored security protocols to fit unique requirements.
Comprehensive DLP: Protects sensitive data through robust data loss prevention.
Integration Capabilities: Connects seamlessly with cloud services and applications.

What are the benefits of using Zscaler Zero Trust Exchange?

Enhanced Security: Delivers consistent protection regardless of user location.
Improved Compliance: Ensures adherence to data protection regulations.
Streamlined Access: Simplifies connectivity to private and cloud applications.
Scalability: Supports expanding organizational demands with cloud scalability.
Real-time Visibility: Provides instant insights into security incidents and network traffic.

Zscaler Zero Trust Exchange is deployed across industries to secure remote access and enforce zero trust principles. Organizations in finance, healthcare, and technology sectors utilize it for secure internet access and visibility into cloud applications, enhancing performance and compliance in dynamic environments.

Zscaler

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

Buyer's Guide

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

February 2026

Free Report: Microsoft Defender for Cloud Apps vs. Zscaler Zero Trust Exchange Platform

Find out what your peers are saying about Microsoft Defender for Cloud Apps vs. Zscaler Zero Trust Exchange Platform and other solutions. Updated: February 2026.

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