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Palo Alto Networks VM-Series vs Zscaler Cloud Firewall comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

Review summaries and opinions

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

ROI

Sentiment score
5.7
Palo Alto Networks VM-Series delivers strong ROI through enhanced security, rapid deployment, and significant time savings despite high pricing.
Sentiment score
4.8
Zscaler Cloud Firewall enhances global security and efficiency with comprehensive features, delivering 60% savings in time and costs.
Customers can see data within a week, indicating a quick return on investment.
Senior Manager Technical Security at Hitachi Systems, Ltd.
I have seen a return on investment with time saving and money saving.
Senior Devsecops Cloud Cybersecurity Specialist at CGI
 

Customer Service

Sentiment score
7.5
Customers appreciate Palo Alto Networks VM-Series support for responsiveness and expertise, despite occasional delays and high premium service costs.
Sentiment score
5.5
Zscaler Cloud Firewall support is generally helpful and responsive but may sometimes lack adequacy for premium expectations.
The support quality could be improved.
Senior Manager Technical Security at Hitachi Systems, Ltd.
Resolving issues promptly.
Head of Sales at Omgea Exim Ltd
They are responsive and provide high-quality assistance.
Cyber security consultant at L&T Technology Services
The response and support are sometimes inadequate, which detracts from the overall experience of an otherwise impressive solution.
Director at Aquila ICT Solutions
The technical support from Zscaler was excellent.
Cyber Security Architect at Accenture
 

Scalability Issues

Sentiment score
7.4
Palo Alto Networks VM-Series is scalable, easy to deploy, and suits businesses with positive feedback on flexibility and growth.
Sentiment score
5.7
Zscaler Cloud Firewall offers excellent scalability, supporting diverse organizations smoothly, with most users rating it between seven and ten.
They are easy to upgrade, and with credit licensing, they scale effectively according to demand.
Security Technical Lead at a tech services company with 11-50 employees
The solution is scalable and can easily handle an increase in the number of users.
Cyber security consultant at L&T Technology Services
It is easy to use with an excellent graphical user interface and extensive documentation, which contributes to its high scalability.
Senior Security Consultant at Netsecurity.no
In this case, Twingate will be very easy compared to Zscaler.
IT Security at a manufacturing company with 11-50 employees
 

Stability Issues

Sentiment score
8.2
Palo Alto Networks VM-Series is highly regarded for stability, reliable performance, and consistent uptime, despite minor navigation delays.
Sentiment score
7.2
Zscaler Cloud Firewall is highly rated for stability and reliability despite minor latency and GUI lag issues.
Hardware is generally very stable.
Security Technical Lead at a tech services company with 11-50 employees
I have not experienced any major problems or downtime.
Senior IT Infrastructure Specialist at contemi
Perfection is unlikely as the dynamic nature of traffic and constant changes can result in occasional bugs despite regular updates.
Senior Security Consultant at Netsecurity.no
There were some stability issues due to occasional latency and lags, particularly with the GUI and report generation.
Cyber Security Architect at Accenture
 

Room For Improvement

Palo Alto Networks VM-Series needs UI updates, better platform integration, scalability, user-friendliness, and improved documentation for broader efficiency.
Zscaler Cloud Firewall needs deployment, support, features, UI, pricing, integration, and dashboard improvements for optimal performance and usability.
Integration with CSIRT across all use levels would make it easier for administrators to stay updated on the blocked entities without manual intervention.
Cyber security consultant at L&T Technology Services
Most customers go for partner-enabled support, which involves multiple layers, leading to delays.
Security Technical Lead at a tech services company with 11-50 employees
Having those features missing, we are not proposing Palo Alto Networks VM-Series to all customers.
Sr. Network Engineer at a tech services company with 1-10 employees
For now, there is no dashboard or network management system available for Twingate.
IT Security at a manufacturing company with 11-50 employees
The reverse proxy feature for Data Loss Prevention (DLP) is missing.
Cyber Security Architect at Accenture
I believe the integration of AI could improve the dashboard by making it more agile and effective in monitoring and predicting threats.
Director at Aquila ICT Solutions
 

Setup Cost

Palo Alto VM-Series is costly but reliable, with complex licensing; AWS Marketplace offers scalable subscription options.
Zscaler Cloud Firewall has subscription pricing influenced by user count and features, making it costlier than some competitors.
Palo Alto is expensive in terms of pricing, particularly when comparing features to cost.
Security Technical Lead at a tech services company with 11-50 employees
The cost involves purchasing through a vendor, which might mark up due to the supply chain.
Senior IT Infrastructure Specialist at contemi
Pricing for Palo Alto Networks is higher than other OEMs, but considering the robustness and features, it gains customer trust.
Head of Sales at Omgea Exim Ltd
Zscaler Cloud Firewall is quite expensive compared to competitors.
Cyber Security Architect at Accenture
 

Valuable Features

The VM-Series provides scalable, flexible security with advanced threat management, visibility, and integration features, enhancing network protection.
Zscaler Cloud Firewall offers comprehensive security with real-time inspection, customizable controls, and automatic features, eliminating hardware needs.
We use these tools to prevent all known and unknown threats using Palo Alto Networks' Wildfire and other data filtering tools to gather information, analyze traffic, manage malicious traffic, and offer visibility, control, and attack prevention.
Senior Manager Technical Security at Hitachi Systems, Ltd.
Palo Alto's robust threat intelligence supports new updates, and I can open cases directly with their Threat Intelligence team.
Security Technical Lead at a tech services company with 11-50 employees
The DNS security significantly enhances security through visibility and detection, allowing control over crucial traffic like DNS, which is often exploited by ransomware.
Senior Security Consultant at Netsecurity.no
It is really customized, a security policy that can be applied to the users so they can access only the resources I enable them.
IT Security at a manufacturing company with 11-50 employees
Advanced threat protection features in Zscaler Cloud Firewall are practically the key component that every customer wants.
Director at Aquila ICT Solutions
The best features that Zscaler Cloud Firewall offers are that it is AI powered and automated.
Senior Devsecops Cloud Cybersecurity Specialist at CGI
 

Categories and Ranking

Palo Alto Networks VM-Series
Ranking in Firewalls
16th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
66
Ranking in other categories
Advanced Threat Protection (ATP) (18th)
Zscaler Cloud Firewall
Ranking in Firewalls
38th
Average Rating
8.2
Reviews Sentiment
6.3
Number of Reviews
20
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Firewalls category, the mindshare of Palo Alto Networks VM-Series is 2.7%, up from 0.9% compared to the previous year. The mindshare of Zscaler Cloud Firewall is 1.0%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Palo Alto Networks VM-Series2.7%
Zscaler Cloud Firewall1.0%
Other96.3%
Firewalls
 

Featured Reviews

MuhammadNadeem - PeerSpot reviewer
Sr. Network Engineer at a tech services company with 1-10 employees
Has supported urgent deployments and enabled inline threat protection but pricing and features could be more flexible
I am not using Palo Alto Networks VM-Series mostly, but based on my experience, there are some deficiencies in Palo Alto Networks VM-Series. Having those features missing, we are not proposing Palo Alto Networks VM-Series to all customers. However, for urgency and for some solutions that customers need for some of their other sites and subdivisions, we are providing the same.
Carlos Snel - PeerSpot reviewer
Director at Aquila ICT Solutions
Has streamlined secure deployments across large enterprises while offering reliable protection and intuitive management
The centralized management console, also referred to as the Zscaler dashboard, impacts the ability of my customers to respond to security incidents significantly. I see it as user-friendly, and clients are really happy with using it, which motivates them to keep using Zscaler Cloud Firewall because they enjoy the GUI. It's very intuitive, making it easy to navigate alerts and incidents. My clients rarely have questions about where to find specific information once Zscaler Cloud Firewall is running. The interface speaks for itself, requiring little to no additional training, which is a major plus. Advanced threat protection features in Zscaler Cloud Firewall are practically the key component that every customer wants. Unfortunately, it is an option and not included in the basic package. Clients need to pay for the next higher bundle to access it, but practically all clients I have dealt with want this feature 100%. Regarding visibility, I can confirm that Zscaler Cloud Firewall indeed includes a feature for application layer visibility embedded in the service. It provides visibility into what you're doing, which is especially interesting nowadays when discussing AI tools, as companies do not want their employees to copy-paste sensitive information into AI systems. We have seen cases such as Samsung's chip design where sensitive info got exposed. The visibility of applications, including cloud applications and AI tools, is significant for compliance with data policies, and you can also run reports and alerts on it.
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Top Industries

By visitors reading reviews
Outsourcing Company
10%
Manufacturing Company
10%
Comms Service Provider
10%
Construction Company
9%
Construction Company
11%
Manufacturing Company
10%
Financial Services Firm
8%
Computer Software Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business31
Midsize Enterprise15
Large Enterprise24
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
Large Enterprise13
 

Questions from the Community

Features comparison between Palo Alto and Fortinet firewalls
In the best tradition of these questions, Feature-wise both are quite similar, but each has things it's better at, it kind of depends what you value most. PA is good at app control, web filtering a...
How does Azure Firewall compare with Palo Alto Networks VM Series?
Both products are very stable and easily scalable. The setup of Azure Firewall is easy and very user-friendly and the overall cost is reasonable. Azure Firewall offers a solid threat awareness, can...
What is your experience regarding pricing and costs for Palo Alto Networks VM-Series?
The pricing is more on the expensive side, but it is justified due to its functionality, reliability, and throughput, even with all features enabled. In comparison to FortiGate ( /products/fortinet...
Which lesser known firewall product has the best chance at unseating the market leaders?
Netscope, Zscaler if they continue route they are on now. FIrewalls needs great deal of automation on each end, datacenter and endpoint. In between you have branch office. So blending EPP and firew...
What is your experience regarding pricing and costs for Zscaler Cloud Firewall?
My experience with pricing, setup cost, and licensing was fine.
What needs improvement with Zscaler Cloud Firewall?
I think Zscaler Cloud Firewall can be improved by adding more features. The needed improvements involve scalability, which is something I wish they would address.
 

Overview

 

Sample Customers

Warren Rogers Associates
Zenith Live, Azure, Carlsberg Group
Find out what your peers are saying about Palo Alto Networks VM-Series vs. Zscaler Cloud Firewall and other solutions. Updated: August 2026.
908,877 professionals have used our research since 2012.