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Microsoft Defender for Cloud Apps vs Zscaler Internet Access comparison

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Executive SummaryUpdated on Apr 20, 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) (6th), Internet Security (3rd), Web Content Filtering (1st), Cloud Access Security Brokers (CASB) (7th), ZTNA as a Service (10th), Secure Access Service Edge (SASE) (9th)
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
8.2
Reviews Sentiment
7.0
Number of Reviews
53
Ranking in other categories
Secure Web Gateways (SWG) (2nd), 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.
ShanavasVK - PeerSpot reviewer
Helps maintain a consistent posture of internet security while getting rid of VPN and hovering into zero trust
There could be a better way for the tool to categorize the traffic. For example, the tool does exceptions and everything overall. If I want to give guest access or provide access to guest users or any other internet access and if it does not go through the SSL inspection because, in our company, we can't have the root certificate on a device that we don't manage, which can be called out as an exception or an exclusion, but that doesn't provide a proper reflection of the picture of what is happening in the environment. There are granularities bringing it down. The tool I used or still have is Zscaler Cloud Connector to protect the cloud environment, which can have a bit more user-friendly installation and setup, and it would help a lot. The deployment process of Zscaler Cloud Connector needs to be more user-friendly. Improvements are required in the exception category. For example, suppose I report on a monthly basis what the breaches and traffic violating the SSL inspection area are coming from. In that case, I may find that half of them may be coming through some guest network, meaning the tool doesn't differentiate between the guest or normal networks or the corporate networks. Having options to differentiate different networks would be ideal so that it can show a true picture of things to users, as half of the things in the tool are not in our control and are not of our concern.

Quotes from Members

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

Pros

"I would definitely recommend iboss for web filtering purposes to other organizations or individuals."
"Its initial setup was straightforward."
"Technical support is pretty sharp and very responsive."
"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."
"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."
"It was a very easy product to install. It can be deployed very fast."
"We chose iboss for both zero trust and proxy (SWG) because their SWG was superior."
"Content filtering is the most useful feature of iboss."
"I would rate it a ten because I have not experienced any stability issues so far with Defender for Cloud Apps."
"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."
"The most valuable feature of Microsoft Defender for Cloud Apps is to stop shadow IT."
"All of the features are valuable because all of the features are related."
"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 most valuable feature is the alerting system."
"The integration within the entire Defender suite is highly valuable because it allows for communication between different components and offers pretty decent correlations."
"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."
"Zscaler excels in security protection and the cloud is always up-to-date. It does not matter if you are a small or big organisation, you will receive the same security quality."
"The most valuable feature for me is the ability to see how my network and traffic looks with modules like analytics and insights."
"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."
"The solution’s customer service is good."
"We use ZIA for outbound internet connectivity. The internet traffic of on-prem users will be directed to the ZIA cloud for security checks and web filtering."
"We don't have to buy equipment to use it. And when our engineers set it up on our side, we just configured a few settings and we were in."
"I like the granularity of the control of all the traffic, including SSL inspection. I also like the fact that the user interface is intuitive. The latencies with Zscaler are minimal compared to those of any other competitor. Other competitors do not really have the global scale that Zscaler has and cannot promise low latencies."
 

Cons

"For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company ExxonMobil."
"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."
"To scale up, a new iboss Node Blade Chassis must be purchased."
"Iboss is growing so fast that it is often hard for them to keep up with the challenges."
"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."
"The reporting feature needs improvement."
"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."
"I'd like to see them accelerate development on the security side, particularly around data loss prevention."
"Sometimes the support is actually lacking."
"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."
"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."
"I would like more customization of notifications. Currently, you either get everything or you get limited information. I would like to have something in between where we can customize the data that is included in notifications."
"We are having trouble with our continuous reporting configuration and struggling with configuring the collector properly with our log parsing."
"The product is very good so far, however, it would be better if it could include more up-to-date threat protection."
"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."
"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 is expensive. They recently revised the pricing and packaging. Some of our existing customers have been asking for alternate solutions for a lower price."
"The main issue with Zscaler Internet Access is proxy IP detection, which sometimes makes sites inaccessible."
"I would like to see the ability to choose a pool of IPs for my company, set up rules based on them, and know that those IPs are not used by other companies."
"Zscaler Internet Access could improve by adding a VPN feature."
"Technical support could be better."
"The deployment process of Zscaler Cloud Connector needs to be more user-friendly."
"The interface for administration could be better. They should upgrade the management portal."
"The solution's technical support needs to be improved, especially by offering a better support structure for different geographical areas."
 

Pricing and Cost Advice

"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."
"It is expensive compared to one of its competitors."
"We have not priced the solution recently, but they were competitive with other vendors in the past."
"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."
"The overall pricing for iboss is very competitive and transparent."
"Our clients normally use the Microsoft E1 licensing, which is renewed yearly."
"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."
"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."
"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."
"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 price could be better and should be reconsidered."
"The pricing is fair."
"It is a little bit expensive. When you want to have the complete package with Office 365, Defender, and everything else, it is expensive."
"Price-wise, the tool is reasonable compared to the other products in the market but it is not a very low-priced tool. The solution does provide value for money."
"Zscaler is an expensive solution, but it's worth the price. Their services are unmatched by competitors. Some may come with half the features that Zscaler can offer and be much cheaper. However, they do not have the global coverage that Zscaler has, and they will not provide the same low latencies and the same speeds that Zscaler can."
"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."
"Zscaler is transparent about its pricing model."
"ZIA follows a subscription model pricing and charges you based on the number of users. I would say its price is good."
"Roughly, we might spend $70,000 a month on the solution. We don't pay for anything beyond the standard licensing fee."
"It is costlier than other solutions."
"Because it's a cloud solution, we pay on a yearly basis. It is affordable and includes tech support and all features."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
11%
Manufacturing Company
9%
Government
6%
Computer Software Company
15%
Financial Services Firm
12%
Manufacturing Company
8%
Government
7%
Computer Software Company
15%
Manufacturing Company
10%
Educational Organization
10%
Financial Services Firm
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about iboss?
Content filtering is the most useful feature of iboss.
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...
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: June 2025.
860,168 professionals have used our research since 2012.