Prisma Access by Palo Alto Networks vs Zscaler Zero Trust Exchange Platform comparison

Palo Alto Networks and Zscaler are both solutions in the ZTNA as a Service category. Palo Alto Networks is ranked #2 with an average rating of 8.2, while Zscaler is ranked #1 with an average rating of 8.6. Palo Alto Networks holds a 13.7% mindshare in ZaaS, compared to Zscaler’s 17.4% mindshare. Additionally, 92% of Palo Alto Networks users are willing to recommend the solution, compared to 98% of Zscaler users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 12, 2025

Prisma Access and Zscaler Zero Trust Exchange Platform are both strong competitors in the security solutions category. Based on user feedback, Prisma Access seems to have a slight upper hand due to its comprehensive next-gen firewall capabilities and deep security inspection features, whereas Zscaler is praised for its ease of use and strong cloud security attributes.

Features: Prisma Access is noted for next-gen firewall capabilities, scalability, and strong integration with Palo Alto's services like WildFire and Cortex Data Lake. Zscaler offers ease of use, seamless VPN integration, and strong cloud security with data loss prevention and a secure web gateway.

Room for Improvement: Prisma Access users suggest faster configuration, better third-party integration, and an improved support model. There are also concerns about latency. Zscaler users find the pricing high, desire more granularity in data inspection, and request improvements for the interface and notification systems.

Ease of Deployment and Customer Service: Both platforms support hybrid and public cloud deployments, with Prisma Access having stronger on-premises deployment capabilities. Zscaler is praised for simpler cloud-native configuration. Prisma Access's customer service is knowledgeable but can be slow for complex issues. Zscaler's support is responsive, though ticket resolution could be quicker.

Pricing and ROI: Prisma Access is regarded as expensive but users find its comprehensive security features justify its cost. Zscaler's pricing is seen as competitive for larger deployments with flexible user-based licensing. Both provide strong ROI through improved security and reduced infrastructure costs. Zscaler's scalable pricing model is particularly appealing to varied organizational sizes.

To learn more, read our detailed Prisma Access by Palo Alto Networks vs. Zscaler Zero Trust Exchange Platform Report (Updated: September 2025).

Buyer's Guide

Prisma Access by Palo Alto Networks vs. Zscaler Zero Trust Exchange Platform

September 2025

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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

Mindshare comparison

As of October 2025, in the ZTNA as a Service category, the mindshare of iboss is 2.4%, up from 1.3% compared to the previous year. The mindshare of Prisma Access by Palo Alto Networks is 13.7%, down from 15.7% compared to the previous year. The mindshare of Zscaler Zero Trust Exchange Platform is 17.4%, down from 20.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

ZTNA as a Service Market Share Distribution
Product	Market Share (%)
Zscaler Zero Trust Exchange Platform	17.4%
Prisma Access by Palo Alto Networks	13.7%
iboss	2.4%
Other	66.5%

ZTNA as a Service

Featured Reviews

Matt Crockford

Head of Cybersecurity at SES Water

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

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Amar-Patil

Security Engineer at a tech services company with 1,001-5,000 employees

Enables seamless policy management and supports secure remote work

Our primary use case for Prisma Access by Palo Alto Networks is to control the internet and serve as an internet proxy. Additionally, we use it for secure remote work One of the most valuable features of Prisma Access by Palo Alto Networks is the ability to manage on-premise firewalls. We can…

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Sumit Bhanwala

architect at Tata Consultancy

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.

Read full review

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."

"Valuable features: Within the filter: Controls (Web categories, applications, and Allow/Block list) and Network (local Subnets). Within the reporter: Logs (Event Log) and Reports."

"We chose iboss for both zero trust and proxy (SWG) because their SWG was superior."

"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."

"I would rate the technical support of iboss a solid 10 without a shadow of a doubt."

"The solution has massively improved our security posture, giving us full visibility into what our staff does online."

"Content filtering is the most useful feature of iboss."

"Granular setup, which was able to set different levels of filters using the OUs in the AD."

More iboss pros

"It supports auto-scaling for mobile users. It auto-scales depending on the mobile user traffic. For example, if 1,000 people are working from home today, and tomorrow, the number increases to 2,000, it is not going to be an issue."

"Prisma Access protects all app traffic, so that users can gain access to all apps and that's very important because we need to be able to access everything. It also allows us to access non-web apps; anything internal that we need access to, we can access."

"To quarantine and clean a malware file provides a lot of security."

"The most valuable feature is the zero-trust part of this solution."

"The solution's most valuable features were the model's reduced complexity on the client side and its capability to provide security."

"There are plenty of features this solution provides and the most valuable would be the complete security protection we are receiving. We are provided with similar security that the Palo Alto AWS solution has. This includes features such as a firewall and machine learning AI."

"The solution improved the consistency of our security controls and the BCP. There has been a 20 percent reduction in TCO. Prisma Access also enabled us to deliver better applications by centralizing security management."

"I like it because it's very easy to use. You install the client and you have to know your gateway, but that's something we give to our users. Beyond that, it takes about three seconds to train them on how to use it. And it just works well. That's great for us because it means less administrative time."

More Prisma Access by Palo Alto Networks pros

"The scalability of the solution is great."

"The most valuable feature is its seamless integration capabilities, streamlining the process by eliminating the need for extensive installations."

"As a cloud-based service, it is very easily implemented."

"You can close your data protection gaps with Zscaler. You can quickly find all the classified, sensitive data across the cloud."

"The Live Logs are a cool feature. We can directly identify issues and divert user traffic."

"The solution offers a simplified network infrastructure and security functions and it enables secure remote access for the users"

"The most valuable feature is the manageability of the micro tunnels."

"The best feature is the ability to establish the connection between your public network and automatically connect to the intranet connection."

More Zscaler Zero Trust Exchange Platform pros

Cons

"Iboss is growing so fast that it is often hard for them to keep up with the challenges."

"Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern."

"I'd like to see them accelerate development on the security side, particularly around data loss prevention."

"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."

"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."

"If they could implement an extra security layer preventing access to iboss from the open internet, it would be great."

"The dashboards for local use could be better."

"The solution could be stronger on the integration side and offer more cloud applications like G Suite or Oracle."

More iboss cons

"They automatically update and they should give us time to fully understand what they're updating so that we can make sure it doesn't impact production."

"It applies commits to the firewalls slowly. There isn't an API you can use for anything. We've previously had trouble with the egress IP addresses though we expressed to engineering that those mustn't change. They changed several times without warning, causing a lot of headaches."

"When it comes to the VPN, it uses the global protect VPN functionality to connect remotely, but it has a feature limitation for assigning multiple IP sub-links to different user groups. It would be much better if we are able to assign the current IP blocks for the sub-links based on the user groups."

"When we deploy firewall rules via Panorama, we find it's a little bit slow. We have a global environment and might have 100 gateways or VPNs in the cloud. When we deploy something, it tries to deploy it one-by-one, and that can be slow."

"The user interface could be better. They need to work a little bit on the console. It is similar to their firewalls but not exactly. They need to clean it up a bit."

"We are using the SaaS offering. We use our applications for microservices. We use Twistlock to scan containers, and it displays these results in Prisma, which is a good feature because we can see vulnerabilities with respect to these containers. We can see everything in a very detailed manner. However, when you have different environments for a single application, such as DEV, QA, PROD, and TEST, all these environments run multiple containers, which can lead to a very high number of containers. In such a scenario, it shows you the alerts for all those containers that have vulnerabilities. If you show the results of all the containers that share the same image, it is not going to add any value. Therefore, they should narrow down the alerts based on a container. It should show information for a single container. Otherwise, the person who is looking at the results gets the impression that he has to fix all these issues. This is something that they can improve."

"The initial support team is not very good. Most of the time, I have found that they are one to three years experienced only. They don't have network expertise. They know about Palo Alto products but don't know how to troubleshoot the issues. We have to guide them most of the time to troubleshoot correctly since their approach is not developed."

"One thing that would help is if we could get a guide. With Cisco, for example, you can just type the problem regarding your Cisco product and you will easily get your solution. In Palo Alto, however, it's not easy to find the solutions."

More Prisma Access by Palo Alto Networks cons

"In the next release, I would like to see RE2 Regex supported."

"We often face performance and latency issues with Zscaler SASE."

"The menu for the ZIA portal could be organized a little bit differently. The most-used modules should be at the top of the menus, not somewhere near the bottom, some of them are not organized well in my opinion."

"The DX layer could be better if it had improved visibility."

"The pricing for Private Access seems to be on the expensive side, and I believe they should consider making it more competitive with other solutions."

"The area that requires improvement is their support. The current support is lacking."

"Zscaler Private Access could improve by improving external access. If external parties want to access locally to my company's services, we need to onboard them into our domain, otherwise, it doesn't work. Additionally, if their company also has Zscaler Private Access, then it doesn't work. They need to log in with our domain ID, not their company ID."

"There is some issue while accessing the portal. It takes too long."

More Zscaler Zero Trust Exchange Platform cons

Pricing and Cost Advice

"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."

"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."

"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 pricing for this solution is on the higher end."

"Prisma Access is a little bit expensive."

"The licensing cost is about 18,000 euros."

"Prisma SaaS is more expensive than similar solutions but I think it's worth it."

"It is pretty expensive. We have to balance the cost of some features. They need to work on some of the services and products, price-wise."

"I'm still comparing, but the solution is quite expensive."

"The solution is expensive."

"The solution requires a license and the technical support has extra costs. The licensing model could improve."

More Prisma Access by Palo Alto Networks pricing and cost advice

"In the long run, cloud services are not inherently costly."

"The price is competitive."

"The pricing is expensive and on the higher end. Honestly, in my opinion, it is not worth the price."

"My company is a Zscaler Private Access partner, so the customers pay for the license fees."

"The licensing model for Zscaler Cloud DLP allows you to only buy what you need. You don't need to buy it as a whole, so it's good."

"In terms of market positioning, I would describe Zscaler Private Access as offering optimal pricing. Based on our experience, Cato Networks tends to be slightly more expensive."

"Zscaler SASE software is quite expensive compared to other solutions"

"The technical support is good."

More Zscaler Zero Trust Exchange Platform pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

11%

Computer Software Company

11%

Manufacturing Company

Government

Financial Services Firm

12%

Computer Software Company

12%

Manufacturing Company

11%

Government

Computer Software Company

14%

Financial Services Firm

13%

Manufacturing Company

Insurance Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	6
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	22
Midsize Enterprise	21
Large Enterprise	28

By reviewers
Company Size	Count
Small Business	16
Midsize Enterprise	11
Large Enterprise	41

Questions from the Community

What needs improvement with iboss?

For zero trust implementation, we encountered complexity issues, especially with a large infrastructure company Exxon...

See all answers

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...

See all answers

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...

See all answers

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...

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What do you like most about Prisma Access by Palo Alto Networks?

The most valuable features of the solution are in the areas of the secure remote access it provides while also being ...

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What is your experience regarding pricing and costs for Prisma Access by Palo Alto Networks?

From my experience, Palo Alto is more expensive compared to solutions like Netskope and Triscale.

See all answers

What do you like most about Zscaler SASE?

The most valuable features of Zscaler Private Access are reliability, scalability, and availability.

See all answers

What needs improvement with Zscaler SASE?

The solution needs to improve a lot of aspects.

See all answers

What is your primary use case for Zscaler SASE?

We are using Zscaler Zero Trust Exchange for its Zscaler Internet Access service. It provides web security, DLP, data...

See all answers

Comparisons

Netskope vs iboss

Compared 14% of the time

Zscaler Internet Access vs iboss

Compared 14% of the time

Cisco Umbrella vs iboss

Compared 13% of the time

Check Point Harmony SASE (formerly Perimeter 81) vs iboss

Compared 8% of the time

Lightspeed Filter vs iboss

Compared 4% of the time

More iboss Competitors

Netskope vs Prisma Access by Palo Alto Networks

Compared 13% of the time

Zscaler Internet Access vs Prisma Access by Palo Alto Networks

Compared 11% of the time

Cisco Umbrella vs Prisma Access by Palo Alto Networks

Compared 8% of the time

FortiSASE vs Prisma Access by Palo Alto Networks

Compared 6% of the time

Cloudflare One vs Prisma Access by Palo Alto Networks

Compared 3% of the time

More Prisma Access by Palo Alto Networks Competitors

Cato SASE Cloud Platform vs Zscaler Zero Trust Exchange Platform

Compared 11% of the time

Microsoft Purview Data Loss Prevention vs Zscaler Zero Trust Exchange Platform

Compared 8% of the time

FortiSASE vs Zscaler Zero Trust Exchange Platform

Compared 7% of the time

Netskope Private Access vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

Cloudflare One vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

More Zscaler Zero Trust Exchange Platform Competitors

Product Reports

Buyer's Guide

iboss

October 2025

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Buyer's Guide

Prisma Access by Palo Alto Networks

October 2025

Prisma Access by Palo Alto Networks report

Download Prisma Access by Palo Alto Networks product report

Buyer's Guide

Zscaler Zero Trust Exchange Platform

September 2025

Zscaler Zero Trust Exchange Platform report

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Also Known As

iBoss Cloud Platform

Palo Alto Networks Prisma Access, Prisma Access, GlobalProtect, Palo Alto GlobalProtect Mobile Security Manager, Prisma SaaS by Palo Alto Networks, Prisma Access

Zscaler SASE, Zscaler DLP, Zscaler CASB, Zscaler CSPM, Zscaler Browser Isolation, Zscaler Posture Control

Overview

Iboss offers a comprehensive cloud-based security platform valued for its scalability and autonomous features, ensuring robust security with easy deployment and management capabilities.

Renowned for its robust security architecture, Iboss integrates seamlessly within diverse networks, delivering efficient granular filtering and advanced content categorization. Its single pane of glass console provides ease of management, allowing rapid scalability suitable for rapidly deploying environments. Operates in BYOD setups due to inline filtering without device installation. Integration with cloud-based applications enhances user control, and features like SASE, SSL inspection, and ChatGPT risk protection stand as highlights. Despite its strengths, users have pointed out areas for enhancement like direct navigation in reports, SSL decryption, and better cloud integration while having room to improve data loss prevention.

What are the most important features of Iboss?

Scalability: Supports rapid deployment across diverse networks.
SASE: A consolidated approach to secure access.
SSL Inspection: Ensures safe data transmission.
Granular Filtering: Detailed control over accessible content.
Single Pane Management: Unifies control through a centralized console.

What benefits should users consider in reviews?

Cost-effectiveness: Offers competitive pricing with robust features.
Autonomous Operation: Reduces management overhead.
Responsive Support: Provides assistance when needed.
Flexible Deployment: Available for both cloud and on-premises environments.

The usage of Iboss spans educational institutions, specifically K-12, to enforce internet policies, protect data, and support remote work environments. It provides web filtering and security frameworks to ensure safe browsing. Its platform-as-a-service model offers flexibility for both cloud-based and on-premises requirements, integrating seamlessly to deliver enhanced security features suitable for various deployment needs including zero trust, CASB, and network security for work-from-home setups.

iboss

Prisma Access by Palo Alto Networks provides consistent security for all users and applications across your remote networks. Prisma Access grants users safe access to the cloud and data center applications and the internet as well. In addition, the solution combines all of your security and networking capabilities into a single cloud-delivered platform, enabling flexible hybrid workforces.

Prisma Access can be managed two ways:

Cloud Managed
Panorama Managed

Prisma Access delivers both networking and security services, including:

SD-WAN
VPN
Zero Trust network access (ZTNA)
Quality of service (QoS)
Clean Pipe
Firewall as a service (FWaaS)
DNS Security
Threat Prevention
Cloud secure web gateway (SWG)
Data loss prevention (DLP)
Cloud access security broker (CASB)

Prisma Access by Palo Alto Networks Features

Prisma Access by Palo Alto Networks has many valuable key features including: App-ID, User-ID, Device-ID, SSL Decryption, Dynamic User Group (DUG) Monitoring, AI/ML-Based Detection, IoT Security, Reporting, URL Filtering, Enterprise Data Loss Prevention (DLP), Digital Experience Monitoring (DEM)*, Logging, Policy Automation, Intrusion Prevention System (IPS), and many more.

Prisma Access by Palo Alto Networks Benefits

Some of the benefits of using Prisma Access by Palo Alto Networks include:

Security: Prisma Access gives you consistent security to protect against cyberattacks, with enforcement of policy at every location. By implementing Prisma Access, you also gain protection that works to prevent known and unknown malware, exploits, credential theft, command and control, and many other attack vectors across all ports and protocols.
Global connectivity: Prisma Access provides global coverage through use of its connectivity layer.
Scalability: With Prisma Access, scaling is automatically managed and is scalable, flexible, and agile.
Instant deployment: Deployment is fast, eliminating wasted time that may otherwise be associated with setting up a solution, operating it, or shipping hardware in order to get started.

Reviews from Real Users

Below are some reviews and helpful feedback written by Microsoft Azure Synapse Analytics

users who are currently using the solution.

PeerSpot user Partha D., Global Network Tech Lead at a computer software company, speaks about his experience using the product, saying, "It protects all app traffic so that users can gain access to all apps. Unlike other solutions that only work from ports 80 and 443, which are predominantly for web traffic, Prisma Access covers all protocols and works on all traffic patterns... The most sophisticated attacks can arise from sources that are not behind 80/443."

Tejas J., a Sr. Cloud Security Architect at a computer software company, mentions that "it is geographically dispersed, and it sits on top of Google and AWS platforms. Therefore, you don't face the standard issues, such as latency or bandwidth issues, that you usually face in the case of on-prem data centers.”

Another PeerSpot reviewer, Max I., Associate Director at Cognizant, comments that "Security is absolutely spot-on, really top-notch. It's the result of all the components that come together, such as the HIP [Host Information Profile] and components like Forcepoint, providing end-user content inspection, and antivirus. It incorporates DLP features and that's fantastic because Prisma Access makes sure that all of the essential prerequisites are in place before a user can log in or can be tunneled into."

Palo Alto Networks

Zscaler Zero Trust Exchange enhances security with seamless cloud-based connectivity and VPN-less operation, offering integration with multiple identity providers and advanced security features, suitable for remote work environments.

Zscaler Zero Trust Exchange provides secure, adaptive connectivity without traditional VPNs, allowing organizations to replace legacy systems and bolster remote work security. The platform offers cloud-based protection, single sign-on, dynamic URL categorization, and scalable solutions. While advanced security features like DLP and threat protection enhance data protection, users may face issues with speed, connectivity, and some customization options. Integration challenges, latency due to multi-tenant hosting, reporting delays, and licensing costs require consideration. It supports secure internet access and private application security, ensuring traffic control and data compliance.

What are the key features of Zscaler Zero Trust Exchange?

VPN-less Connectivity: Enables secure remote access without traditional VPNs.
Cloud-based Security: Offers scalable protection utilizing cloud infrastructure.
Single Sign-On: Integrates with multiple identity providers for streamlined access.
Dynamic URL Categorization: Provides real-time URL filtering to enhance security.
Advanced Threat Protection: Detects and mitigates sophisticated threats effectively.
Customizable Policies: Allows tailored security protocols to fit unique requirements.
Comprehensive DLP: Protects sensitive data through robust data loss prevention.
Integration Capabilities: Connects seamlessly with cloud services and applications.

What are the benefits of using Zscaler Zero Trust Exchange?

Enhanced Security: Delivers consistent protection regardless of user location.
Improved Compliance: Ensures adherence to data protection regulations.
Streamlined Access: Simplifies connectivity to private and cloud applications.
Scalability: Supports expanding organizational demands with cloud scalability.
Real-time Visibility: Provides instant insights into security incidents and network traffic.

Zscaler Zero Trust Exchange is deployed across industries to secure remote access and enforce zero trust principles. Organizations in finance, healthcare, and technology sectors utilize it for secure internet access and visibility into cloud applications, enhancing performance and compliance in dynamic environments.

Zscaler

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.

Concord Hospital, State of Colorado, Essilor International, RheinLand Versicherungsgruppe, University of Westminster, Universidade Nove de Julho, SPAR Austria, CAME Group, ZipRealty, Greenhill & Co., IKT Agder, Aviva Stadium, Animal Logic, Management & Training Corporation, Brigham Young University Hawaii, School District of Chilliwack

Siemens, AutoNation, GE, NOV

Buyer's Guide

Prisma Access by Palo Alto Networks vs. Zscaler Zero Trust Exchange Platform

September 2025

Free Report: Prisma Access by Palo Alto Networks vs. Zscaler Zero Trust Exchange Platform

Find out what your peers are saying about Prisma Access by Palo Alto Networks vs. Zscaler Zero Trust Exchange Platform and other solutions. Updated: September 2025.

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