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 #5 with an average rating of 8.5, while Zscaler is ranked #8 with an average rating of 8.5. Microsoft holds a 5.5% mindshare in CASB, compared to Zscaler’s 9.2% 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: April 2026).

Buyer's Guide

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

April 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 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
Product	Mindshare (%)
Microsoft Defender for Cloud Apps	5.5%
iboss	3.3%
Zscaler Zero Trust Exchange Platform	9.2%
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

"iboss is among the few products providing inline filtering where no application is needed on the device. It operates on the network side and is not device-based. This feature was one of the main reasons why we stayed with them for so long."

"We chose iboss for both zero trust and proxy (SWG) because their SWG was superior."

"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."

"iboss is pretty scalable. They provide good support. The case managers you work with to coordinate what you need are pretty good."

"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."

"iboss has significantly lowered the number of security incidents. It is crazy how much it blocks and how much it is aware of the outside danger."

"From a corporate perspective, I understand that it's important to keep the company data safe."

"Our primary use case for this product is DLP,"

More iboss pros

"The most valuable feature is its policy implementation."

"It does a great job of monitoring and maintaining a security baseline. For us, that is a key element. The notifications are pretty good."

"It gives our clients a sense of confidence that in case there are activities on some of their applications, they will get an alert and the issue will be mitigated, based on the action that has been set."

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

"On-demand scanning is the most valuable feature. In addition, it's a fairly fluid product. It syncs back to the cloud and provides metrics. It's pretty intelligent."

"The favorite feature of Microsoft Defender for Cloud Apps is the categorical blocking capability, which appears to be fed from Microsoft Security Intelligence feeds that seem to be better than other solutions and allows for dynamic configuration, cutting down on potential issues from manually managing block lists."

"The solution is helping a lot; we get very detailed reporting on security that really shows what users are doing, including what they've opened, what they're sharing, downloading, viewing, and when they are logging in."

"From what I've seen, it's a good product."

More Microsoft Defender for Cloud Apps pros

"The product’s most valuable features are inbound and outbound scanning and API control."

"I like the web filtering capabilities, which are very good, and it offers sound internet security notifications with a stable, scalable solution and an easy-to-use user interface."

"Zscaler's technical support is quite good."

"The most valuable features of Zscaler CASB are API integration and DLP."

"This is a very good and stable solution that has all the requirements for your security solutions."

"It does the job. What it is needed for. I can use it for VPN, I can use it for secure connections, I can use it as a firewall. So the solution does the job."

"The solution is the best for storage."

"The best feature is the ability to establish the connection between your public network and automatically connect to the intranet connection."

More Zscaler Zero Trust Exchange Platform pros

Cons

"Sometimes, obviously, there are bugs."

"Sometimes the agent stops working in iboss, and we have to reinstall the agent."

"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."

"Their on-premise hardware's network interface is capped at one gigabit, which is sort of a problem. If you stand a filter up where all traffic flows through that, according to them, in order to go above a gigabit, you have to have multiple devices, which in today's IT seems a little bit silly. They could easily put in an SFP port into their device that could accommodate 10 gigs or at least offer a box."

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

"Sometimes when you call in support, you get someone who is just following a sheet. It feels like a runaround. You feel that you are running into that support wall."

"Its pricing could be better."

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

More iboss cons

"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."

"However, the price of the solution could be better."

"Licensing cost is a significant concern. With Defender Plan 1, Microsoft Defender for Cloud Apps comes with a pay-per-use model."

"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."

"Microsoft Defender for Cloud Apps’s technical support services needs improvement."

"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."

"There are certain areas where the product could improve, such as some functionalities that did not work as expected."

"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."

More Microsoft Defender for Cloud Apps cons

"The stability could be improved."

"While Zscaler supports client-initiated connections, it does not support server-initiated connections. This is a feature that Zscaler may consider adding in the future."

"Zscaler Private Access also needs improvement in terms of its interface and security."

"The only issue with Zscaler Cloud DLP is that it only gives you DLP protection from web traffic, which is flowing out, while a full-blown DLP solution such as Forcepoint or Symantec gives you DLP coverage for multiple channels."

"On a scale from one to ten, I would rate Zscaler Private Access at only a three or four."

"The interface needs a bit of work."

"It has massive room for improvement. The Zscaler product itself is okay, but it doesn't give enough granularity for us as an organization to stipulate rules or processes, especially for data-driven services. For instance, we can stick on SSL inspection, but it's just a click box. It doesn't allow us to go any further into the detail of the SSL inspection. We also can't pull it out without having an additional logging server. It just doesn't give us enough granularity. They should give us more control over the interfaces because it is all backend. They weren't very open to discussing their backend architecture with us in terms of their own data centers. They can maybe a little bit more open about what components are there and how the backend infrastructure works alongside Zscaler. Its licensing can be better. Some of the additional licensing costs are quite high, and they should have certain features ready and available as a baseline rather than having to purchase additional licenses for it. Their support should also be improved. I initially had a consultant from Zscaler for its deployment, but the support that I had throughout the deployment of the project wasn't the best."

"We would like to extend the SASE applications for Zscaler."

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."

"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 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."

"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 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."

"The E5 license offers everything bundled. People are moving to Microsoft because you buy one license and it gives you everything."

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

"We are an MST and we do not pay for the solution. However, the price of the solution could be better."

"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."

"This product is not expensive."

"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."

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

More Microsoft Defender for Cloud Apps pricing and cost advice

"Zscaler CASB is an expensive solution."

"The price is competitive."

"The technical support is good."

"It is an auto-renewal subscription service."

"As per industry leads, Zscaler CASB is an expensive solution."

"There is definitely an ROI."

"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 SASE software is quite expensive compared to other solutions"

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

Manufacturing Company

Construction Company

Financial Services Firm

12%

Computer Software Company

Manufacturing Company

Government

Financial Services Firm

13%

Manufacturing Company

Computer Software Company

Insurance Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	7
Midsize Enterprise	7
Large Enterprise	7

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	44

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 needs improvement with Zscaler SASE?

The solution needs to improve a lot of aspects.

See all answers

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...

See all answers

Comparisons

Netskope vs iboss

Compared 9% of the time

Prisma Access by Palo Alto Networks vs iboss

Compared 8% of the time

Fortinet FortiGate vs iboss

Compared 8% of the time

FortiSASE vs iboss

Compared 7% of the time

Versa Unified Secure Access Service Edge (SASE) Platform vs iboss

Compared 2% of the time

More iboss Competitors

Cisco Umbrella vs Microsoft Defender for Cloud Apps

Compared 9% of the time

Zscaler Internet Access vs Microsoft Defender for Cloud Apps

Compared 9% of the time

Netskope vs Microsoft Defender for Cloud Apps

Compared 8% of the time

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

Compared 6% of the time

Microsoft Purview Data Governance 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 7% of the time

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

Compared 4% 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

Cloudflare One vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

More Zscaler Zero Trust Exchange Platform Competitors

Product Reports

Buyer's Guide

iboss

April 2026

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Buyer's Guide

Microsoft Defender for Cloud Apps

March 2026

Microsoft Defender for Cloud Apps report

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Buyer's Guide

Zscaler Zero Trust Exchange Platform

March 2026

Zscaler Zero Trust Exchange Platform report

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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

April 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: April 2026.

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