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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 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
Ranking in Cloud Access Security Brokers (CASB)
8th
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 (3rd), ZTNA as a Service (11th), Secure Access Service Edge (SASE) (9th)
Proofpoint Cloud App Securi...
Ranking in Cloud Access Security Brokers (CASB)
13th
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)
3rd
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
63
Ranking in other categories
Data Loss Prevention (DLP) (2nd), Application Control (3rd), ZTNA as a Service (1st), Secure Access Service Edge (SASE) (2nd), Cloud Security Posture Management (CSPM) (14th), Cloud-Native Application Protection Platforms (CNAPP) (10th), Remote Browser Isolation (RBI) (1st)
 

Mindshare comparison

As of May 2025, in the Cloud Access Security Brokers (CASB) category, the mindshare of iboss is 1.9%, up from 1.3% compared to the previous year. The mindshare of Proofpoint Cloud App Security Broker is 0.7%, up from 0.6% compared to the previous year. The mindshare of Zscaler Zero Trust Exchange Platform is 9.4%, 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

"Technical support is pretty sharp and very responsive."
"The solution has massively improved our security posture, giving us full visibility into what our staff does online."
"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 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 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."
"We chose iboss for both zero trust and proxy (SWG) because their SWG was superior."
"Our primary use case for this product is DLP,"
"From stability and availability standpoints, it is pretty good."
"The product is stable."
"The tool's most valuable feature is reporting. It helps us understand what's going on in our environment."
"The quarantine feature is the solution's most valuable aspect."
"The most valuable features of Zscaler SASE include web filtering, application control, and the private access configuration."
"The UI is easy to use."
"With SASE, we have a single platform that covers multiple task services with which we need to control access. All the features are equally valuable."
"The scalability of the solution is great."
"The agent's versatility is notable, used for digital experience monitoring to collect valuable endpoint metrics for troubleshooting."
"Zscaler Private Access is a platform that eliminates the complexity of VPN configuration."
"I like the web filtering capabilities."
"The solution is cloud-based with the latest inspection engines, which I find to be amazing."
 

Cons

"SSL decryption: We had issues with learners using apps instead of using web browsers. This type of encryption is tough for any appliance in a BYOD environment."
"The dashboards for local use could be better."
"The reporting feature needs improvement. It doesn't give you the expected results. It is quite difficult to get the specific reports needed, and it is not as intuitive as the rest of the platform."
"I am currently doing a PoC of the zero trust aspect of it. Compared to other similar solutions, it is hard to get around each feature. It takes a while to get used to it."
"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."
"Sometimes, obviously, there are bugs."
"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."
"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."
"Proofpoint Cloud App Security Broker should be cheaper."
"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."
"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."
"Users report application access or latency issues with Zscaler Private Access."
"The connectivity monitoring part should be included in the core license without any extra charges."
"The solution's granularity should be improved because it has limited granular options to control, visible, allow, block, delay, and receive."
"The interface needs a bit of work."
"Setup is a bit complex because there are many steps that need to be taken before onboarding and activating the solution."
"Zscaler Private Access's reporting is poor. We should have more insight into the reports regarding what is blocked and allowed."
"The stability could be improved."
"The pre-defined dictionaries could be improved."
 

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."
"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."
"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."
"It is probably in line with other solutions, but I do not deal with the financial side."
"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."
"The pricing is quite high, especially when it comes to the gateway."
"The solution has increased prices this year."
"Zscaler CASB is an expensive solution."
"As per industry leads, Zscaler CASB is an expensive solution."
"It is an auto-renewal subscription service."
"The product is a bit expensive."
"The cost is expensive. It depends on the number of users."
"The product has reasonable pricing."
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Use our free recommendation engine to learn which Cloud Access Security Brokers (CASB) solutions are best for your needs.
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
11%
Manufacturing Company
9%
Government
6%
Computer Software Company
21%
Financial Services Firm
11%
Outsourcing Company
7%
Educational Organization
7%
Computer Software Company
15%
Financial Services Firm
14%
Manufacturing Company
10%
Insurance Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

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?
I have a couple of thoughts for improvement, but usually when I address them with my rep, they put it into the featur...
What is your primary use case for iboss?
We use it primarily for simpler filtering because we're a K12 entity.
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: April 2025.
851,471 professionals have used our research since 2012.