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Proofpoint Cloud App Security Broker vs Zscaler Zero Trust Exchange Platform comparison

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Comparison Buyer's Guide

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
Ranking in Cloud Access Security Brokers (CASB)
7th
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), ZTNA as a Service (8th), Secure Access Service Edge (SASE) (8th)
Proofpoint Cloud App Securi...
Ranking in Cloud Access Security Brokers (CASB)
14th
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
4
Ranking in other categories
No ranking in other categories
Zscaler Zero Trust Exchange...
Ranking in Cloud Access Security Brokers (CASB)
5th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
64
Ranking in other categories
Data Loss Prevention (DLP) (2nd), Application Control (4th), ZTNA as a Service (1st), Secure Access Service Edge (SASE) (1st), Cloud Security Posture Management (CSPM) (12th), Cloud-Native Application Protection Platforms (CNAPP) (10th), Remote Browser Isolation (RBI) (1st)
 

Mindshare comparison

As of August 2025, in the Cloud Access Security Brokers (CASB) category, the mindshare of iboss is 2.1%, up from 1.4% compared to the previous year. The mindshare of Proofpoint Cloud App Security Broker is 0.8%, up from 0.5% compared to the previous year. The mindshare of Zscaler Zero Trust Exchange Platform is 9.7%, down from 13.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Access Security Brokers (CASB)
 

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
Kamal Kumar Verma - PeerSpot reviewer
Stable product with essential document tracking features
In my organization, we worked with around ten to fifteen different technologies, including Bitglass, and CASB was not among our top priorities. While CASB might benefit some organizations, it was optional for our specific setup, considering the other security measures and technologies we had in place. I found no particularly valuable features regarding CASB resolutions. There are other tools available that can achieve the same functionalities and perform similar tasks. For example, I can accomplish tasks like encryption or secure data movement from our office to the internet using alternative services like Zero Trust solutions. Because of this, our organization considered removing it from our system due to its limited benefits compared to other products.
Sumit Bhanwala - PeerSpot reviewer
Cloud-based platform simplifies device and data center management
I find it to be good. The solution is cloud-based with the latest inspection engines, which I find to be amazing. We are less dependent on data centers and device management, which reduces our efforts significantly. It improves our device management, data center management, and updating devices. We need fewer engineers for this management, and it reduces time and efforts for data center management, device upgrades, and IT support.

Quotes from Members

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

Pros

"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."
"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."
"Technical support is pretty sharp and very responsive."
"Iboss is a solution that prevents advanced persistent threats, and has a zero tolerance for attacks."
"Granular setup, which was able to set different levels of filters using the OUs in the AD."
"iboss is easy to use despite its complexity. Multiple engineers manage it, but it's significantly more straightforward to administer than traditional VPNs and web proxies."
"Its initial setup was straightforward."
"The product is stable."
"From stability and availability standpoints, it is pretty good."
"The quarantine feature is the solution's most valuable aspect."
"The tool's most valuable feature is reporting. It helps us understand what's going on in our environment."
"The scalability of the solution is great."
"Its impressive scalability allows the combination of multiple dictionaries and using them as one engine, resulting in narrower data loss gaps."
"I like the web filtering capabilities."
"This secure connection allows users to connect to the Zscaler VPN and access the resources on the office network, making it a highly valuable component of our system."
"What I find most valuable in Zscaler Private Access is that it's a VPN. Its connectivity as a VPN is its most valuable feature."
"The in-line DLP feature is one of the most vital features"
"The best feature is the ability to establish the connection between your public network and automatically connect to the intranet connection."
"The policies are very easy to implement."
 

Cons

"The reporting feature needs improvement."
"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."
"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."
"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."
"For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company ExxonMobil."
"Fold that in with the risk intelligence they're getting from all of the different subscriptions they are a part of. Now, these security companies subscribe to things like emerging threats, databases, etc. You can fold all this intelligence to decide what's happening on an endpoint. I would love to see them start moving into that space. That would compete directly with Microsoft. Maybe that's why they haven't. Having that ability native within the solution would be great. The other area in which I would love to see improvement is more detailed descriptions of why they block websites."
"The dashboards for local use could be better."
"Our biggest problem with their service was it did not recognize the device and filtering did not always work correctly."
"I think some of the hiccups that we had were with the number of domains that we had and how that had to be implemented in Proofpoint."
"They are priced significantly higher and less cost-effective than alternative options."
"The TLS encryption needs to be improved. It's not state of the art."
"Proofpoint Cloud App Security Broker should be cheaper."
"Having a Zscaler-specific device could streamline this process and provide a more consistent user experience across diverse branches."
"There aren't really any missing features that I have witnessed."
"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. Zscaler Cloud DLP doesn't give you coverage for email, fax, and USB channels, and this is the only challenge or room for improvement in the solution. It's just an extension on top of what you're buying on the proxy, so it's just an added layer, and it doesn't cover DLP on a very broad level. I'm unsure if Zcaler is in the business of competing with a full-blown DLP solution, and if there's a plan to expand the features of Zscaler Cloud DLP beyond the web channel because you'll have to deploy a full-blown agent for it. I'm unsure if this is on the cards because the solution is just an added layer that you get with your proxy. I've asked the Zcaler team whether there's a plan to go full DLP in the future, but I didn't get a positive response. There isn't any feature I'd like added to Zscaler Cloud DLP currently, because anything you could think of that should be in cloud or SaaS solutions is already there, except for machine learning, as it's the only functionality that seems to be lacking in the solution. Machine learning is an additional policy available in other DLP solutions in the market, but my team didn't find it in Zscaler Cloud DLP."
"I can't speak to any missing features."
"Occasionally, there are certain delays in report generation."
"Users report application access or latency issues with Zscaler Private Access."
"We often face performance and latency issues with Zscaler SASE."
"We would like to extend the SASE applications for Zscaler."
 

Pricing and Cost Advice

"It is probably in line with other solutions, but I do not deal with the financial side."
"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."
"We have not priced the solution recently, but they were competitive with other vendors in the past."
"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 had an enterprise contract with them for about 32,000 users at that point, which has now grown."
"The tool's most valuable feature is reporting. It helps us understand what's going on in our environment."
"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."
"Pricing for Zscaler Private Access is moderate. It's acceptable, though I can't give you the exact price currently. It's not too expensive, and on a scale of one to five, I would rate it a four out of five in terms of pricing."
"The technical support is good."
"Zscaler Private Access is extremely expensive."
"Zscaler SASE software is quite expensive compared to other solutions"
"The solution is expensive."
"Zscaler CASB is an expensive solution."
"It's expensive currently. But when purchasing for a large number of users, there's room to negotiate. It's really up to the procurement team."
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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
18%
Financial Services Firm
11%
Outsourcing Company
9%
Educational Organization
8%
Computer Software Company
14%
Financial Services Firm
13%
Manufacturing Company
10%
Insurance Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

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...
What do you like most about Proofpoint Cloud App Security Broker?
The tool's most valuable feature is reporting. It helps us understand what's going on in our environment.
What needs improvement with Proofpoint Cloud App Security Broker?
Proofpoint Cloud App Security Broker should be cheaper.
What is your primary use case for Proofpoint Cloud App Security Broker?
We primarily used the product as an identity provider and for document tracking features on mobile.
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...
What do you like most about Zscaler SASE?
The most valuable features of Zscaler Private Access are reliability, scalability, and availability.
What is your experience regarding pricing and costs for Zscaler SASE?
Zscaler SASE is quite expensive compared to other solutions. The price is not fixed and it does not include all of th...
 

Also Known As

iBoss Cloud Platform
FireLayers, PCASB
Zscaler SASE, Zscaler DLP, Zscaler CASB, Zscaler CSPM, Zscaler Browser Isolation, Zscaler Posture Control
 

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.
Emerging Technologies, HP, CSA, Perion
Siemens, AutoNation, GE, NOV
Find out what your peers are saying about Proofpoint Cloud App Security Broker vs. Zscaler Zero Trust Exchange Platform and other solutions. Updated: July 2025.
865,484 professionals have used our research since 2012.