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Proofpoint Cloud App Security Broker vs Zscaler Private Access (ZPA) comparison

 

Comparison Buyer's Guide

Executive Summary

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

Proofpoint Cloud App Securi...
Ranking in Cloud Access Security Brokers (CASB)
17th
Average Rating
8.2
Reviews Sentiment
7.7
Number of Reviews
5
Ranking in other categories
No ranking in other categories
Zscaler Private Access (ZPA)
Ranking in Cloud Access Security Brokers (CASB)
9th
Average Rating
9.0
Reviews Sentiment
6.9
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Cloud Access Security Brokers (CASB) category, the mindshare of Proofpoint Cloud App Security Broker is 0.9%, up from 0.7% compared to the previous year. The mindshare of Zscaler Private Access (ZPA) is 2.0%, up from 0.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Access Security Brokers (CASB) Mindshare Distribution
ProductMindshare (%)
Zscaler Private Access (ZPA)2.0%
Proofpoint Cloud App Security Broker0.9%
Other97.1%
Cloud Access Security Brokers (CASB)
 

Featured Reviews

Farzad Ebrahimi - PeerSpot reviewer
Senior Devsecops Cloud Cybersecurity Specialist at CGI
Layered security has protected our cloud AI apps and significantly reduced attack incidents
The best features Proofpoint Cloud App Security Broker offers are multilayer protection against security attacks and escalation. The escalation feature in Proofpoint Cloud App Security Broker is valuable because we are using more and more users, and it is very scalable in relation to the number of users using the same app on the cloud. The performance of Proofpoint Cloud App Security Broker stands out as the number of attacks blocked is more than 90%. Proofpoint Cloud App Security Broker has positively impacted my organization by resolving all of the security issues related to app security. I can share specific outcomes, such as a reduction in the number of incidents, which is more than 90% related to the past.
BasilJiji - PeerSpot reviewer
System engineer at a retailer with 10,001+ employees
Zero trust access has secured hybrid work and now provides seamless app connectivity
Zscaler Private Access (ZPA) has significantly reduced our attack surface by making our internal apps invisible to the internet. It effectively eliminates lateral movement as users are only connected to the specific application they are authorized to use rather than the entire network segment. Zscaler Private Access (ZPA) is highly stable. The architecture uses a global mesh of service edges with built-in fault tolerance and redundancy, providing an always-on experience that is far more reliable than our old hardware-based VPN concentrator. Zscaler Private Access (ZPA) is elastically scalable because it is a software-defined perimeter and not an appliance-based solution. I can instantly scale to support thousands of additional users without needing to upgrade any physical hardware.

Quotes from Members

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

Pros

"From stability and availability standpoints, it is pretty good."
"The quarantine feature is the solution's most valuable aspect."
"The product is stable."
"The tool's most valuable feature is reporting. It helps us understand what's going on in our environment."
"Proofpoint Cloud App Security Broker has positively impacted my organization by resolving all of the security issues related to app security."
"The scalability is amazing. Whenever we need to upgrade the users, it increases immediately."
"Zscaler Private Access (ZPA) is a mature, enterprise-grade Zero Trust solution that delivers security and operational benefits."
"Zscaler Private Access (ZPA) is much more secure than VPN because users are only allowed to access specific applications rather than the whole network."
"The features I appreciate the most about Zscaler Private Access (ZPA) are that it is very easy to use, and we have Terraform for it, which makes it even easier and very straightforward."
"Zscaler Private Access (ZPA) has significantly reduced our attack surface by making our internal apps invisible to the internet."
"It provides security and has a great service user experience."
"Zscaler ZPA is easy to administer and is organized in a straightforward and logical manner."
"I would assess the security level achieved with Zscaler Private Access (ZPA)'s Zero Trust architecture as inherent to the system."
 

Cons

"They are priced significantly higher and less cost-effective than alternative options."
"Proofpoint Cloud App Security Broker should be cheaper."
"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."
"The rollout process could be much easier, and the configuration of identity providers like Azure is more complicated than with other zero trust network providers. This can be a pain point."
"Zscaler Private Access (ZPA) could be improved by making troubleshooting for specific mobile devices such as iPhones more intuitive, as identifying the root cause for mobile connectivity issues can sometimes be complex."
"Zscaler restricts customization to a maximum of 256 customizable rules, which can be a limitation for us."
"Customer service and support are rated seven or eight out of ten, needing improvement in quality and response time."
"The current pain points we sometimes experience relate to the additional security applications we have on the laptops, and sometimes I don't know if I didn't get any notification from the application because it's an agent problem or something security-wise blocking this."
"The training costs associated with Zscaler Private Access (ZPA) are very high, and there are few resources available online."
"The solution is not scalable; we deploy it in a high-availability environment, but it's not automated."
"There are some bugs in the solution, which they are clearly working on, and they are still not resolving them. So it's taking some time."
 

Pricing and Cost Advice

"The tool's most valuable feature is reporting. It helps us understand what's going on in our environment."
"We had an enterprise contract with them for about 32,000 users at that point, which has now grown."
Information not available
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909,725 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
No data available
Outsourcing Company
13%
Financial Services Firm
13%
Insurance Company
10%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise4
Large Enterprise7
 

Questions from the Community

What needs improvement with Proofpoint Cloud App Security Broker?
Proofpoint Cloud App Security Broker can be improved with more AI features, as it could help. I feel it is fine to not add more about the needed improvements regarding usability or integration.
What is your primary use case for Proofpoint Cloud App Security Broker?
My main use case for Proofpoint Cloud App Security Broker is to protect our applications on the cloud against security attacks. A specific example of how we use Proofpoint Cloud App Security Broker...
What advice do you have for others considering Proofpoint Cloud App Security Broker?
My advice to others looking into using Proofpoint Cloud App Security Broker is that more AI features are needed. Proofpoint Cloud App Security Broker has helped with regulatory compliance and meeti...
What is your experience regarding pricing and costs for Zscaler Private Access (ZPA)?
Regarding pricing, setup costs, and licensing for Zscaler Private Access (ZPA), while it is not the cheapest solution, when you factor in the reduced VPN infrastructure, hardware maintenance, and o...
What needs improvement with Zscaler Private Access (ZPA)?
After deploying Zscaler Private Access (ZPA), I notice a reduction in VPN-related support tickets, particularly during peak hours, and audits become smoother because access is clearly defined per a...
What is your primary use case for Zscaler Private Access (ZPA)?
My primary use case for Zscaler Private Access (ZPA) is securing application-level access to internal applications without exposing the network to the public network. Previously, VPN gave users bro...
 

Also Known As

FireLayers, PCASB
No data available
 

Overview

 

Sample Customers

Emerging Technologies, HP, CSA, Perion
Information Not Available
Find out what your peers are saying about Proofpoint Cloud App Security Broker vs. Zscaler Private Access (ZPA) and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.