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Microsoft Defender for Cloud Apps vs Zscaler Internet Access comparison

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Executive SummaryUpdated on Jul 27, 2025

Review summaries and opinions

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

Categories and Ranking

iboss
Sponsored
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
19
Ranking in other categories
Secure Web Gateways (SWG) (7th), Internet Security (3rd), Web Content Filtering (1st), Cloud Access Security Brokers (CASB) (7th), ZTNA as a Service (8th), Secure Access Service Edge (SASE) (8th)
Microsoft Defender for Clou...
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
39
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
6.8
Number of Reviews
56
Ranking in other categories
Secure Web Gateways (SWG) (4th), Internet Security (2nd)
 

Mindshare comparison

Cloud Access Security Brokers (CASB)
Secure Web Gateways (SWG)
 

Featured Reviews

Matt Crockford - PeerSpot reviewer
It's easy to roll out, and their understanding of our business made it seamless
One aspect we value about iboss is its simplicity. Their customer service is brilliant, and they are super responsive and knowledgeable. It's easy to roll out, and their understanding of our business made it seamless. We were impressed by the solution's mental health function, which can detect if someone needs help. It scans what users are browsing and flags warning signs so we can check to see if they are okay. We've had to use it a couple of times. The user interface is highly intuitive. Our IT team picked it up with minimal training. It's arranged so that it's easy to find where things are. Another advantage is the single pane of glass console, which gives you visibility into what's happening. We're not fully there yet because we haven't implemented zero trust, but we're excited about the possibilities from the demos we've seen. We launched a POC of iboss' ChatGPT Risk Protection feature two weeks ago. AI is a great tool, but you need to be careful what you put into it. My biggest fear is employees inputting sensitive corporate information or customer PII data into one of these chatbots. I was impressed by our trial of the feature. It's exactly what we wanted. Now, when a user goes to ChatGPT, there's a banner warning them not to share information, and we can block conversations containing customer data like bank details and email addresses. I don't want to stop people from using it, but we need visibility. We've only tried it on a test group of 15 people. You can configure it to look for specific keywords or integrate it with your DLP policy if you have that configured
Jagadeesh Gunasekaran - PeerSpot reviewer
Saves us time, has good visibility, and a single dashboard
The solution is user-friendly and provides great visibility into threats. There are easy options available for specific workflow inspections. We can also get support by going through the Microsoft documentation, which is straightforward. Microsoft Defender for Cloud Apps helps us prioritize threats across our enterprise. It covers us from a compliance perspective and protects our organization's data. Data protection is a very important aspect of any new organization, as we need to protect our data from both external attacks and insider threats. Microsoft Defender for Cloud Apps helps us monitor for abnormal activity by insiders, which is one of the most important access points for attackers today. Additionally, the different cloud apps that Defender for Cloud Apps supports provide us with much more visibility into potential threats and activities on the internet. We have integrated Microsoft Defender for Cloud Apps alerts with Sentinel. The integration is straightforward. We can find the configuration details on Microsoft's official documentation website. If we are familiar with how Microsoft products work, we will be able to follow the instructions clearly. Microsoft Defender for Cloud Apps and Sentinel work natively together to deliver coordinated detection and response across our environment. Our integrated Microsoft solutions provide comprehensive threat protection, covering most of the tactics and techniques relevant to the MITRE ATT&CK framework. Sentinel allows us to ingest data from our entire ecosystem. When implementing an SIEM solution, there are always prerequisites such as Active Directory logs, security logs, firewall logs, and DNS logs. These are important logs that need to be ingested into the environment. Sentinel has many third-party connectors available that make integrations straightforward. Microsoft provides the configuration details in the Sentinel platform. It is important to integrate all relevant log sources into the SIEM solution so that we can detect and be alerted to any type of threat factor, whether it is from an internal or external source. Integrating third-party solutions into the platform requires a separate configuration, but Microsoft provides the necessary information. However, we need to have the appropriate permissions to execute these setups. Sentinel provides a centralized dashboard that covers threat management and configuration. It gives us complete insight into what entities are accessing, as well as full details for investigation. We can see how the alerts and threats are relevant to suspicious activities, whether they are related to malicious IP addresses, suspicious ASHAs, or any other indicators of compromise. All of this relevant data can be seen in a single pane. Recently, Microsoft introduced a new investigation experience in a single pane. This means that we can now get a lot of details in a single pane, without having to go there and execute a query. There are a lot of new insights being developed in the Sentinel platform these days. It has software intelligence. They recently introduced Microsoft Defender Threat Intelligence, which covers almost all IOCs. This protects organizational assets from threats and suspicious traffic associated with IOCs. If a match is found, alerts are generated. This is a very interesting feature. Another great feature is automation and logic apps. We can create a number of operations, such as posting in a team's channel if a severe incident occurs or sending an email notification. There are many operations available, so we can automate a lot of tasks. Microsoft Defender for Cloud Apps helps us stay compliant. It has predefined mechanisms in place to prevent attacks. For example, if an external user tries to access our SharePoint folders or files, an attack will be blocked. This is why it is important to give appropriate access to guest users. Microsoft Defender for Cloud Apps has many features and benefits. It provides a number of policies that can be configured to meet the specific needs of our security team. These policies can be used to customize cloud applications so that only authorized users can access them and perform operations that benefit the organization. In terms of safety and security, Microsoft Defender for Cloud Apps is top-notch. Using the solution's automation features, we can suppress false positive alerts. We can also close alerts, lower their severity from "high" to "low" or "informational," or close them immediately with the appropriate commands. This will depend on the configuration automation rule and the perspective from which we are testing. Microsoft Defender for Cloud Apps provides a single console. We are also provided with Microsoft templates to enable workbooks instantly. Alternatively, we can build our own customized workbooks to provide better insights and improve our SOC efficiency and overall performance. Consolidating all of our security data into one dashboard has saved our security operations team a significant amount of time. From an analyst's perspective, it is now much easier to correlate events, investigate alerts, and visualize specific entities. For example, an analyst can quickly see all of the alerts associated with a particular IP address, or they can view all of the activity for a specific entity over the past 24 hours or 7 days. This level of detail and insight would not be possible if our data were siloed in multiple dashboards. The single dashboard saves our operations approximately 20 hours per week by eliminating the need to access multiple consoles and tabs. Microsoft Defender for Cloud Apps threat intelligence can help us prepare for potential threats before they happen. However, it depends on how we develop the policies for the database to block or ignore things in our environment.
AshwaniTyagi - PeerSpot reviewer
Offers good reliability and availability to users
Sometimes, cost is one component that customers complain about, especially if they compare it with some of its competitors. Zscaler's pricing seems to be a bit on the higher side. I think the pricing model is also something that the tool can probably look into to optimize or improve for the customer so that it can be a competitive tool commercially. The solution's technical support needs to be improved, especially by offering a better support structure for different geographical areas.

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."
"Because of iboss, I did not have to assign web filtering tasks to my techs on a daily basis."
"Content filtering is the most useful feature of iboss."
"iboss is among the few products providing inline filtering where no application is needed on the device."
"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 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."
"I would rate the technical support of iboss a solid 10 without a shadow of a doubt."
"All of the features are valuable because all of the features are related."
"The most valuable features of Microsoft Defender for Cloud Apps include live, up-to-date information, which provided real-time alerts, and the ability to delve into detailed metadata information."
"It does a great job of monitoring and maintaining a security baseline. For us, that is a key element. The notifications are pretty good."
"If your business requirements are relatively simple, it can get the job done."
"The product’s most valuable feature is SQL database."
"I like the web GUI/the management interface. I also like the security of Microsoft. As compared to other manufacturers, it's less complex and easy to understand and work with."
"Defender's integration with our identity solutions is critical in our current setup."
"There are a lot of features with benefits, including discovery, investigation, and putting controls around things. You can't say that you like the investigation part but not the discovery. Everything is correlated; that's how the tool works."
"The cloud proxy and integration are some of the key features. Since there is cloud waste, we can quickly provision it and start working on the configuration. On top of that, they have added a few more features. They have integrated CASB, and file sandboxing is part of it."
"The initial setup was straightforward. The biggest thing for us was to build our own policies. The deployment itself was only a few hours."
"I would recommend Zscaler Internet Access due to its ease of use and deployment, with a user-friendly interface."
"Zscaler covers all the features needed to replace a VPN or proxy solution. They are good. They've been on the market for 15 years now, so they are mature enough."
"Zscaler Internet Access protects using data loss prevention. If you have a CASB exposing your cloud out into the network, then Zscaler Internet Access will go ahead and control that unknown cloud application in the CASB, protecting it. There is also data detection with exact data match. This improves the data coming into your cloud so you are protecting it."
"The scanning feature is impressive, because they do not introduce a big latency to the traffic."
"The data loss prevention feature is the most valuable. It stops our users from inadvertently leaking our customers' data to the Internet or anywhere else it shouldn't go."
"The VPN is valuable, as the whole technology is very different from a traditional VPN."
 

Cons

"File integrity monitoring would be very advantageous as an additional feature."
"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."
"The area I would like to see improvement in is the ability with in the reporter to navigate directly to the content the user is traversing. It is kind of there, but it's not perfect. Quite frequently, I receive links that lead me to pages with error messages."
"I'd like to see them accelerate development on the security side, particularly around data loss prevention."
"Sometimes the agent stops working in iboss, and we have to reinstall the agent."
"The solution could be stronger on the integration side and offer more cloud applications like G Suite or Oracle."
"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."
"Iboss is growing so fast that it is often hard for them to keep up with the challenges."
"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 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."
"We are having trouble with our continuous reporting configuration and struggling with configuring the collector properly with our log parsing."
"There are challenges with detection and there are challenges with false-positive rates."
"There are some features, such as user navigation content filtering, that are disabled by default, and it probably makes sense to enable them by default."
"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."
"I want them to enhance in-session policy."
"Defender could integrate better with multi-cloud and hybrid environments. It requires some additional configuration to ingest data from non-Azure environments and integrate it with Sentinel."
"The solution's technical support needs to be improved, especially by offering a better support structure for different geographical areas."
"Zscaler Internet Access can improve by adding traffic filtering based on the DNS."
"The main issue with Zscaler Internet Access is proxy IP detection, which sometimes makes sites inaccessible."
"The reporting functionality could be a bit easier to use. There is a reporting function, but it's quite hard to do any good reporting, from a user-management perspective. For example, if a department manager wants to know how his department is using the web, there is a way to get the data, but it's quite cumbersome to get it and show it well. And that's true for comparing between departments."
"They block Zscaler IPs when the traffic origin is from Zscaler IPs. They've been blocked by certain government organizations so the end users are not able to visit those websites unless we ask them to unblock those IP. This is a bit problematic."
"There are many functionalities in Zscaler Internet Access that need improvements, such as an advanced firewall and logging capabilities to track calls."
"One thing that needs to be improved is their presence in China. I'm not sure if that's a Zscaler thing or if it's a problem with all vendors in this space, but it would be nice to have better coverage in China. This concern is a common one for vendors across the board when dealing with the Chinese market."
"In every cloud service in the world, you have multiple upstream internet providers to create diversity so that if one of your providers fails, your network just continues. In South Africa, there is only one upstream provider, and that's not right. That that's a problem."
 

Pricing and Cost Advice

"It is expensive compared to one of its competitors."
"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 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."
"We have not priced the solution recently, but they were competitive with other vendors in the past."
"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."
"The pricing is fair."
"It has pretty good pricing."
"The price could be better and should be reconsidered."
"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."
"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."
"The product's pricing seems fair."
"The price is competitive. It's not cheap and it's not expensive."
"It is a few pounds per user per month."
"The pricing is fair based on its competitive market."
"​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."
"The solution is a little bit expensive. On a scale of one to five, I would rate it as a three."
"It is quite expensive. It does its job, but it is quite expensive for what we need."
"The pricing is an issue. It is expensive compared to other firewalls on the market."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
9%
Healthcare Company
6%
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
8%
Government
7%
Computer Software Company
16%
Manufacturing Company
12%
Financial Services Firm
9%
Healthcare Company
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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?
My impression on the pricing, setup costs, and licensing of Microsoft Defender for Cloud Apps is that it's fair. I do...
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 ...
 

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: July 2025.
865,295 professionals have used our research since 2012.