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Cisco Secure Firewall vs Fortinet FortiOS vs Palo Alto Networks VM-Series comparison

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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:
 

ROI

Sentiment score
5.8
Fortinet FortiGate offers high ROI with cost savings, enhanced security, and increased productivity, driving widespread user satisfaction.
Sentiment score
4.8
Cisco Secure Firewall boosts returns with cost reductions, efficiency, stability, enhanced security, and appreciated integration and cost-effectiveness.
Sentiment score
6.3
Fortinet FortiOS offers cost-effective, scalable security, with competitive pricing and partnerships, enhancing ROI compared to top brands.
Sentiment score
5.7
Palo Alto Networks VM-Series delivers strong ROI through enhanced security, rapid deployment, and significant time savings despite high pricing.
Clients are now comfortable and not wasting productive hours on IT support.
Managing Director at a manufacturing company with 10,001+ employees
The automation part is giving us a cost benefit and speed; we can react faster.
BDM Fortinet & BDM Teamlead at Exclusive Networks
It's a very useful tool to mitigate and protect your enterprise.
Staff Infrastructure & Security Engineer at Mozn Systems
There is always a return on investment because you find you invest heavily, but your environment is secure and then you are at rest; you do not need to panic.
Specialist Datacenter And Server at IHS Towers
The biggest return on investment when using Cisco Secure Firewall is that there's no waste in any infrastructure cost and licensing costs for us.
Assistant Vice President at PLDT Enterprise
From my point of view, the biggest return on investment when using Cisco Secure Firewall is the single pane of glass, which is a huge plus for us.
Network Engineer at a government with 10,001+ employees
Once it is deployed, I do not have to revisit or replace the hardware.
Network Administrator at a educational organization with 501-1,000 employees
The pricing of FortiOS is competitive and reasonable compared to other leading products such as Palo Alto and Check Point.
Senior Manager at ITX360 (Pvt) Ltd
Fortinet is strong in terms of cost and compatibility with other vendors.
Technology Consultant at 1ware
Customers can see data within a week, indicating a quick return on investment.
Senior Manager Technical Security at Hitachi Systems, Ltd.
 

Customer Service

Sentiment score
6.6
Fortinet FortiGate support is generally well-rated for responsiveness and expertise, though experiences vary by region and complexity.
Sentiment score
7.3
Cisco Secure Firewall receives high ratings for responsive, knowledgeable support, despite some concerns about process speed and consistency.
Sentiment score
8.2
Fortinet FortiOS support is responsive and helpful but sometimes slow with complex issues, lacking top-tier vendor standards.
Sentiment score
7.5
Customers appreciate Palo Alto Networks VM-Series support for responsiveness and expertise, despite occasional delays and high premium service costs.
The quick resolution of issues with Fortinet FortiGate is due to the support of the company and the fact that the equipment is easy to work with.
IT Manager at a consultancy with 10,001+ employees
I would rate the technical support for Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
As a solution provider, when I encounter problems, I connect directly with Fortinet support, and they provide solutions within a very short time.
Manager, Information Technology Operation/Presales at TechMonarch
I have to provide many logs, yet problems remain unresolved, often requiring workarounds rather than solutions.
VSO at a computer software company with 501-1,000 employees
I have been working with them on firewalls, wireless, switching, and routing, and the support is the best.
Principal Consultant at Epitome Infotech Solutions (P) Ltd
They have expertise and provide solutions for the most difficult problems.
Network Security Administrator at a government with 501-1,000 employees
I would rate them nine or ten out of ten.
Technology Consultant at 1ware
Fortinet technical support is very responsive and helpful.
Senior Manager at ITX360 (Pvt) Ltd
Support engineers sometimes lack eagerness to assist with issues such as the memory problem.
Director, IT Infrastructure Department at Zemen Bank S.C.
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
 

Scalability Issues

Sentiment score
7.1
Fortinet FortiGate effectively scales for diverse enterprises, despite occasional hardware limitations and complexities in adding new devices.
Sentiment score
6.7
Cisco Secure Firewall offers scalable performance for diverse enterprises, though potentially costly, with adaptable clustering and model options for growth.
Sentiment score
8.2
Fortinet FortiOS is highly scalable, adapting to different organizations, supporting growth and global deployments, yet may need hardware upgrades.
Sentiment score
7.4
Palo Alto Networks VM-Series is scalable, easy to deploy, and suits businesses with positive feedback on flexibility and growth.
They scale up really well from smaller models like the FortiGate 40 and 50 to bigger sites with the FortiGate 100 for more throughput - up to enterprise datacenters.
IT Manager at Daltons Limited
The variation comes in terms of the interfaces and throughputs, but from a security perspective, you get the same benefit, irrespective of whether you have an entry-level unit or an enterprise.
Cewa Solutions Architect at a tech services company with 11-50 employees
We determine sizing based on multiple factors: number of users, available links, traffic types, server count, services in use, and whether services will be published.
General Surgery Specialist at Helwan University Cairo
When something happens in the device, the failover happens very quickly without any interruption.
Network Unit Head at a comms service provider with 501-1,000 employees
Cisco Secure Cloud now allows us to potentially take the management functions of Cisco Secure Firewall, move it into the cloud, and integrate it with other Cisco security products, managing everything from one single pane.
Senior Network Engineer at a insurance company with 5,001-10,000 employees
I rate the scalability as a number 10.
Cybersecurity Team Leader at EMAK For Computer Manufacturing (ECM)
When customers' networks grow and needs expand, we can easily switch between models to trade up devices.
Technology Consultant at 1ware
It allows for the expansion of users and devices without additional licensing costs.
Senior Manager at ITX360 (Pvt) Ltd
We have been using Fortinet for bandwidth shaping and many other bandwidth-related functions.
Associate Director IT Operations at Procento
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
 

Stability Issues

Sentiment score
7.7
Fortinet FortiGate is stable, with minor issues mostly resolved by updates, and users rate its stability highly.
Sentiment score
7.7
Cisco Secure Firewall is praised for reliability, stability, strong performance, effective support, with minor bugs not affecting its high availability.
Sentiment score
7.8
Fortinet FortiOS is praised for stability, with minor issues usually tied to configurations or external factors, not the system.
Sentiment score
8.2
Palo Alto Networks VM-Series is highly regarded for stability, reliable performance, and consistent uptime, despite minor navigation delays.
We're experiencing 99.999% availability consistently.
Manager, Information Technology at a consumer goods company with 11-50 employees
I would rate the stability of Fortinet FortiGate a ten out of ten.
NAC Support at Rah Infotech Pvt Ltd
Currently, we are experiencing a general outage of one of the main internet service providers of the Dominican Republic, and we have not been impacted in our operations because with SD-WAN, we have another internet service provider and we are working with the second WAN connection without any disruption.
CISO at a financial services firm with 1,001-5,000 employees
We have often encountered split-brain scenarios during failover processes and code upgrades, which have been persistent problems for us.
Senior Manager, Network Engineering at TTi Power Equipment
We work with a cluster with high availability, so if something goes wrong, we have it functioning.
Cisco Secure Firewall offers exceptional performance and stability.
Principal Consultant at Epitome Infotech Solutions (P) Ltd
While the product is largely stable, it sometimes faces memory issues in specific versions like 11 OE, which can be disruptive.
Director, IT Infrastructure Department at Zemen Bank S.C.
There were no lags, there were no issues, and no hanging of the firewall.
Associate Director IT Operations at Procento
Stability is a seven out of ten because during version migrations, and sometimes with new versions, Fortinet is not as good.
Technology Consultant at 1ware
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
 

Room For Improvement

Fortinet FortiGate users face stability issues, high costs, complex interfaces, and desire improvements in support, integration, and features.
Users desire a more intuitive Cisco Secure Firewall GUI with better integration, simplified licensing, and enhanced threat management capabilities.
Fortinet FortiOS requires improvements in VPN, pricing, compatibility, UI, security features, support, updates, deployment, and pricing consistency.
Palo Alto Networks VM-Series needs UI updates, better platform integration, scalability, user-friendliness, and improved documentation for broader efficiency.
These sessions should be around five to ten minutes long, allowing users and partners to quickly grasp the information without disrupting their daily tasks.
Managing Director at a manufacturing company with 10,001+ employees
The solution should be able to implement machine learning and analytics of all the logs for threat detection and protection.
Senior Systems Engineer at Caribbean Development Company
It would be better for customers to get immediate replacements even with a standard subscription.
Director at a tech services company with 11-50 employees
My ongoing complaint for the last six years has been the lack of CLI functionality, which hinders my ability to work on the firewall, alongside concerns regarding deployment time.
Senior Manager, Network Engineering at TTi Power Equipment
The GUI is useless for me and frustrates me to a very high degree, which led me to switch to the CLI for configuration.
Network Engineer at a logistics company with 10,001+ employees
Firewall as a Service can scale to a very large extent because it is a cloud-based offering that can scale up to a very large number, which is not a problem.
Chief Technology Officer at Binary Global Limited
Fortinet FortiOS faces memory issues, which can lead to unexpected downtimes.
Director, IT Infrastructure Department at Zemen Bank S.C.
There should be more documentation on how to use the CLI or how to perform CLI versions of tasks that can be done through the GUI.
Network Administrator at a educational organization with 501-1,000 employees
Compared to other market leaders like Palo Alto and Check Point, FortiOS has many bugs in its initial releases.
Senior Manager at ITX360 (Pvt) Ltd
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
 

Setup Cost

Fortinet FortiGate is cost-effective and flexible compared to competitors, but may be expensive for small businesses.
Cisco Secure Firewall offers balanced pricing with comprehensive features, justifying higher costs through reliability, security, and support.
Fortinet FortiOS is often pricey but justified by features, with agreements influencing costs, suitable for mid-size businesses.
Palo Alto VM-Series is costly but reliable, with complex licensing; AWS Marketplace offers scalable subscription options.
Last year, I renewed the support for three years, which can sometimes be expensive but depends on the security benefits and how it helps us.
Network & System Admin at Invoke Studios
It offers cost savings as it is generally cheaper than the competition.
IT Infrastructure Architect at Apotek 1
It is about 20% cheaper.
Network Security Engineer at TD SYNNEX
It's good to have them, however, it costs us a lot.
It Administration at Dilcon Community School
It's considered a premium, but people pay that price for Cisco.
Principal Consultant at Epitome Infotech Solutions (P) Ltd
There are a lot of in-place contracts for us that provide the benefit of discounts.
Solutions Architect at a manufacturing company with 501-1,000 employees
It is an affordable solution for us.
Technology Consultant at 1ware
Fortinet products are somewhat pricey, similar to Cisco equivalents, however, they have justified their price point.
Network Administrator at a educational organization with 501-1,000 employees
I am satisfied with the pricing, licensing, and setup costs of FortiOS, rating it nine out of ten compared to other familiar leading firewalls.
Senior Manager at ITX360 (Pvt) Ltd
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
 

Valuable Features

Fortinet FortiGate offers robust security features, user-friendly interface, scalability, affordability, and centralized management, ideal for diverse applications.
Cisco Secure Firewall offers strong protection with VPN, FMC management, high availability, threat detection, and seamless Cisco integration.
Fortinet FortiOS is praised for UTM, user-friendly interface, robust security, excellent performance, cost-effectiveness, and seamless management.
The VM-Series provides scalable, flexible security with advanced threat management, visibility, and integration features, enhancing network protection.
We got a firewall and gave an SSL VPN to my client to connect to their servers, after which, such kind of activities involving ransomware attacks stopped.
Owner at Mindware Computer Solutions
They put in a thing called the FortiCookbook, which is very easy to read with real-life scenarios that make networking tasks like joining networks very straightforward.
IT Manager at Daltons Limited
The firewall and VPN features are the most valuable in protecting our customers' networks.
Sales & Support at a tech services company with 1-10 employees
What stands out positively about Cisco is their training and support, which has effectively prepared engineers to work with their products.
Senior Manager, Network Engineering at TTi Power Equipment
This is very important to my organization, as we work extensively with security because we are a bank, so we can keep the data safe.
Network Security Administrator at a government with 501-1,000 employees
Cisco Secure Firewall allows me to safeguard Layer 7 or Layer 3 and manage the security rules with the business needs of my organization.
It is user-friendly when it comes to turning on features, and it has been reliable and effective.
Network Administrator at a educational organization with 501-1,000 employees
The threat intelligence in FortiOS is very high, and the system is scalable without additional licensing costs.
Senior Manager at ITX360 (Pvt) Ltd
The solution offers good threat intelligence, which is crucial for our customers' security purposes.
Technology Consultant at 1ware
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
 

Mindshare comparison

As of April 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 18.3%, down from 21.1% compared to the previous year. The mindshare of Cisco Secure Firewall is 7.5%, up from 5.5% compared to the previous year. The mindshare of Fortinet FortiOS is 1.1%, up from 0.9% compared to the previous year. The mindshare of Palo Alto Networks VM-Series is 1.8%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Mindshare Distribution
ProductMindshare (%)
Fortinet FortiGate18.3%
Cisco Secure Firewall7.5%
Palo Alto Networks VM-Series1.8%
Fortinet FortiOS1.1%
Other71.3%
Firewalls
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
Manager, Information Technology Operation/Presales at TechMonarch
A stable solution with an intuitive interface and quick customer service
I have been working with Fortinet FortiGate, WatchGuard, Sophos, and SonicWall. I'm not as comfortable with SonicWall because of their UI and limitations. I prefer Fortinet above all other options. When it comes to configuration, I am confident in my ability to handle various tasks, including creating policies such as firewall rules, web policies, and application policies. Additionally, I can configure VPNs and implement load balancing, among other tasks. Overall, I feel much more comfortable working with Fortinet. Fortinet has made significant improvements by integrating AI with firewalls for threat analysis and prevention. In the past 2-3 years, they have launched FortiSASE and SIEM, and they also provide SOC services. Both Palo Alto and Fortinet FortiGate are excellent. While Fortinet FortiGate comes at higher prices, the functionality and support justify the cost. They promptly resolve firmware issues and inform all support providers about configuration changes.
Phil Shiflett - PeerSpot reviewer
Senior Manager, Network Engineering at TTi Power Equipment
Unified policies streamline network management but complex licensing requires attention
Cisco Secure Firewall has some growth opportunities in terms of visibility and control capabilities regarding managing encrypted traffic. It has the ability to analyze encrypted traffic, and there is potential for more integration with APIs and AI to enhance these capabilities. Cisco Secure Firewall needs improvement in deployment time and the capability to access the CLI during support calls. I often encounter issues when technical support uses a CLI that is not familiar to me while troubleshooting through the GUI. My ongoing complaint for the last six years has been the lack of CLI functionality, which hinders my ability to work on the firewall, alongside concerns regarding deployment time. For the next release, they should look at the features offered by competitors such as Fortinet, including the ability to perform packet capture directly from the interface. If they enhanced their troubleshooting efficiency related to packet capture for each specific rule, it would simplify the process significantly.
MS
Associate Director IT Operations at Procento
Single-pane management has simplified firewall control and has improved risk mitigation
I would not say that Fortinet FortiOS is not very scalable. Generally, what happens is that for enterprises, we hire consultants who do the capacity planning and sizing to determine what kind of firewalls to put in place. At the same time, it is not only the number of users; it also depends on the number of WAN links coming in and everything, because we have been using Fortinet for bandwidth shaping and many other bandwidth-related functions. They should improve their machine learning AI capabilities of Fortinet FortiOS because there is too much competition. Other players are also improving and making a lot of changes in their UI and overall operating system.
AV
Cyber security consultant at L&T Technology Services
Enhance cybersecurity for large enterprises using advanced threat management
An improvement could be the integration of security intelligence with Palo Alto cloud via APIs. This would allow IOCs, domains, and hash values to be automatically entered, reducing manual entry. Integration with CSIRT across all use levels would make it easier for administrators to stay updated on the blocked entities without manual intervention.
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Comms Service Provider
10%
Manufacturing Company
8%
Financial Services Firm
6%
Computer Software Company
12%
Manufacturing Company
9%
Comms Service Provider
7%
Construction Company
6%
No data available
Manufacturing Company
9%
Financial Services Firm
9%
Comms Service Provider
9%
Computer Software Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business364
Midsize Enterprise135
Large Enterprise190
By reviewers
Company SizeCount
Small Business186
Midsize Enterprise129
Large Enterprise231
By reviewers
Company SizeCount
Small Business43
Midsize Enterprise13
Large Enterprise23
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise16
Large Enterprise24
 

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?
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What is the biggest difference between Sophos XG and FortiGate?
From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...
What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?
As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...
Which is better - Fortinet FortiGate or Cisco ASA Firewall?
One of our favorite things about Fortinet Fortigate is that you can deploy on the cloud or on premises. Fortinet Fort...
How does Cisco's ASA firewall compare with the Firepower NGFW?
It is easy to integrate Cisco ASA with other Cisco products and also other NAC solutions. When you understand the Cis...
Which is better - Meraki MX or Cisco ASA Firewall?
Cisco Adaptive Security Appliance (ASA) software is the operating software for the Cisco ASA suite. It supports netw...
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...
What is your experience regarding pricing and costs for Fortinet FortiOS?
I rate the pricing for FortiOS as eight or nine out of ten. It is an affordable solution for us.
What needs improvement with Fortinet FortiOS?
I would not say that Fortinet FortiOS is not very scalable. Generally, what happens is that for enterprises, we hire ...
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...
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,...
 

Comparisons

 

Also Known As

Fortinet FortiGate Next-Generation Firewall
Cisco Adaptive Security Appliance (ASA) Firewall, Cisco ASA NGFW, Adaptive Security Appliance, Cisco Sourcefire Firewalls, Cisco ASAv, Cisco Firepower NGFW Firewall, Cisco Secure Firewall ASA Virtual - BYOL
No data available
No data available
 

Overview

 

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya
There are more than one million Adaptive Security Appliances deployed globally. Top customers include First American Financial Corp., Genzyme, Frankfurt Airport, Hansgrohe SE, Rio Olympics, The French Laundry, Rackspace, and City of Tomorrow.
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Warren Rogers Associates
Find out what your peers are saying about Fortinet, Netgate, Sophos and others in Firewalls. Updated: March 2026.
885,376 professionals have used our research since 2012.