Try our new research platform with insights from 80,000+ expert users

Microsoft Defender for Cloud Apps vs Zscaler Internet Access comparison

Sponsored
 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 2, 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
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), Cloud Access Security Brokers (CASB) (7th), ZTNA as a Service (7th), Secure Access Service Edge (SASE) (8th)
Microsoft Defender for Clou...
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
42
Ranking in other categories
Cloud Access Security Brokers (CASB) (4th), Advanced Threat Protection (ATP) (14th), Microsoft Security Suite (12th)
Zscaler Internet Access
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
58
Ranking in other categories
Secure Web Gateways (SWG) (3rd), Internet Security (2nd)
 

Mindshare comparison

Cloud Access Security Brokers (CASB) Market Share Distribution
ProductMarket Share (%)
Microsoft Defender for Cloud Apps6.9%
Prisma Access by Palo Alto Networks14.8%
Netskope14.7%
Other63.599999999999994%
Cloud Access Security Brokers (CASB)
Secure Web Gateways (SWG) Market Share Distribution
ProductMarket Share (%)
Zscaler Internet Access13.3%
Cisco Umbrella15.1%
Prisma Access by Palo Alto Networks9.2%
Other62.400000000000006%
Secure Web Gateways (SWG)
 

Featured Reviews

reviewer2701851 - PeerSpot reviewer
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.
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.
Mohan Janarthanan - PeerSpot reviewer
Assosiate Vice President at Novac Technology Solutions
User access management and threat prevention are enhanced with user-friendly controls
The best features Zscaler Internet Access offers include application control, tenant segregation, and PoP center regions which have low availability zones. The internet access is very successful and bandwidth speed is excellent. It also has application-based control, URL-based control, and SSL inspection capabilities, which are very useful. Additionally, the in-depth CASB segregation is very beneficial to us. One unique feature I found helpful is the tenant level restrictions, which we use to only access our organization's tenant level mail IDs, drives, and specific tenant level access while restricting public access. Zscaler Internet Access has positively impacted our organization as we have noticed substantial outputs and income. It has improved our security environment control and endpoint protection. It prevents numerous web attacks through its AI/ML incorporated capability which identifies malware, threats, and viruses. It has a toggle button to enable features entirely at the tenant level for all users onboarded into Zscaler Internet Access, resulting in much better outcomes.

Quotes from Members

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

Pros

"Content filtering is the most useful feature of iboss."
"It was a very easy product to install. It can be deployed very fast."
"The security aspect of the solution, particularly the malware behind it, is excellent. That's something that really helped us out. It's not just a simple proxy that just blocks the insights of potential threats that come on behind it. They do malware detection and that helps us a lot."
"The console is cloud-based, which is something I really appreciate."
"The solution has massively improved our security posture, giving us full visibility into what our staff does online."
"Granular setup, which was able to set different levels of filters using the OUs in the AD."
"From a use-case scenario, what I like the most is the plug-in. I like the fact that we can do the filtering of these devices offsite independent of the network they are connected to, and we do not have to have traffic coming back inside our network."
"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."
"In Microsoft Defender for Cloud Apps, there is an option to enable files. Once you enable that, it will give you all the files in your organization and where they are located in the cloud... That feature is very useful for investigation purposes."
"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 of Microsoft Defender for Cloud Apps is that we are primarily using only the Defender for Cloud on the Azure Cloud."
"The product helps us with privileged identity management to control who has access to what and for how long."
"The most valuable feature is the ease of management. It's important."
"If your business requirements are relatively simple, it can get the job done."
"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."
"It is very easy to use, which is what we look for in these types of solutions."
"Zscaler Internet Access's roaming user feature is most valuable and is much better compared to other secure web gateways."
"The most valuable feature is bandwidth control."
"The solution’s customer service is good."
"The best thing about Zscaler Internet Access is the website filtering. In the UAE it's quite an important feature because most of the malware comes through the SQL injection and through downloads from websites. Zscaler helps protect against that."
"We like Zscaler's traffic filtering, web security, DLP, and IPS features. The real-time threat protection is excellent."
"Zscalar Internet Access is for Internet security, like an Internet security gateway. I like how it runs seamlessly in the background with a single sign-on. The controls you can have on devices for Internet security are good, and it doesn't impact speed wherever you're connected. Overall, I think it's very good so far."
"For our needs, the cloud-native proxy architecture is a very good solution. We are moving away from on-prem appliances and moving more toward cloud-based solutions. Zscaler is a good fit for our strategy. This architecture helps with cyber threats because we inspect most of the traffic and we can see that a lot of threats are stopped directly in the secure web gateway."
"The most valuable feature of Zscaler Internet Access is that it is a consolidated solution, it comes with many features, such as DLP."
 

Cons

"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."
"Sometimes the agent stops working in iboss, and we have to reinstall the agent."
"For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company ExxonMobil."
"One thing I would like to see differently with their Zero Trust platform is that some of the AI aspects related to high-risk activities have more false positives."
"Our iboss subscription access should be more secure with an OTP or VPN etc. It is easy to gain access if, for example, hackers obtain my username and password."
"Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern."
"The reporting feature needs improvement."
"Its pricing could be better."
"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."
"Sometimes, we'll get false positive alarms. For example, when a SharePoint path has no file sharing, but there is an external user, it will trigger an alarm that the file has been shared with an external user... the alerting mechanism should be more precise when giving you an alert about what activity has been done with the file..."
"The areas of Microsoft Defender for Cloud Apps that need improvement are related to IAM, as they do not provide much support for local users."
"The insights could be improved, especially in reporting."
"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."
"In the future, I would like to see more plug-and-play capabilities that use AI to tell you what needs to be done. It would be helpful if it scanned our devices and made security suggestions, on a configuration basis."
"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."
"This service would be better if it had a separate license, only for this service, that could be used to track usage."
"We'd like for them to include some sort of antivirus tool."
"The solution can be improved by advancing some of the newer technologies such as the DLP feature, and adding email security."
"The deployment process of Zscaler Cloud Connector needs to be more user-friendly."
"There are a few features that are not compatible with the Azure cloud."
"One feature I am missing is the ability to connect automatically to internal monitoring systems."
"The main issue with Zscaler Internet Access is proxy IP detection, which sometimes makes sites inaccessible."
"The solution's technical support needs to be improved, especially by offering a better support structure for different geographical areas."
"I don't know whether it's Zscaler or not, however, sometimes I can't access my time management. I need to wait and try again a few hours later. Typically, if I let some time pass, I can access it again."
 

Pricing and Cost Advice

"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 expensive compared to one of its competitors."
"It is probably in line with other solutions, but I do not deal with the financial side."
"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."
"The overall pricing for iboss is very competitive and transparent."
"We have not priced the solution recently, but they were competitive with other vendors in the past."
"The pricing is fair."
"We have an educational licensing agreement. It's a customer agreement for multiple years."
"We are an MST and we do not pay for the solution. However, the price of the solution could be better."
"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."
"Our clients normally use the Microsoft E1 licensing, which is renewed yearly."
"It has pretty good pricing."
"The E5 license offers everything bundled. People are moving to Microsoft because you buy one license and it gives you everything."
"The pricing is in the middle. It isn't too cheap or expensive compared to other antivirus or security products. It is priced according to industry standards."
"There are multiple bundles: enterprise, business, and transformation. Transformation includes all the features, but recently I've seen a few more line items that are additional costs. Overall, it's expensive."
"It is a few pounds per user per month."
"The solution is a little bit expensive. On a scale of one to five, I would rate it as a three."
"​Be aware that you will need to invest some time and money to adapt your environment for Zscaler (traffic redirection, software deployment, authentication, etc).​"
"We have found the solution to be expensive."
"Licenses are available on a per-host basis. Some features like sandboxing require an additional fee, but most standard features are included in the license."
"The tool is moderately priced."
"Because it's a cloud solution, we pay on a yearly basis. It is affordable and includes tech support and all features."
report
Use our free recommendation engine to learn which Cloud Access Security Brokers (CASB) solutions are best for your needs.
879,422 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
10%
Manufacturing Company
9%
Comms Service Provider
6%
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
9%
Government
7%
Computer Software Company
14%
Manufacturing Company
11%
Financial Services Firm
10%
Comms Service Provider
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 Business15
Midsize Enterprise10
Large Enterprise19
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise9
Large Enterprise37
 

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...
Which is the better security solution - Cisco Umbrella or Zscaler?
Cisco Umbrella and Zscaler Internet Access are two broad-spectrum Internet security solutions that I have tried. Zs...
Which is better, Zscaler internet access or Netsckope CASB?
We researched Netskope but ultimately chose Zscaler. Netskope is a cloud access security broker that helps identify ...
What is your experience regarding pricing and costs for Zscaler Internet Access?
It is only for big companies currently and they only focus on that. That is one of the problems to get into the marke...
 

Also Known As

iBoss Cloud Platform
MS Cloud App Security, Microsoft Cloud App Security
ZIA
 

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.
Ulster-Greene ARC, BanRegio, HDFC, Ralcorp Holdings Inc., British American Tobacco, Med America Billing Services Inc., Lanco Group, Aquafil, Telefonica, Swisscom, Brigade Group
Find out what your peers are saying about Palo Alto Networks, Cisco, Netskope and others in Cloud Access Security Brokers (CASB). Updated: December 2025.
879,422 professionals have used our research since 2012.