Cisco Secure Firewall vs Zscaler Cloud Firewall comparison

Cisco and Zscaler are both solutions in the Firewalls category. Cisco is ranked #7 with an average rating of 8.1, while Zscaler is ranked #24 with an average rating of 8.3. Cisco holds a 6.0% mindshare in Firewalls, compared to Zscaler’s 0.4% mindshare. Additionally, 83% of Cisco users are willing to recommend the solution, compared to 92% of Zscaler users who would recommend it.

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Executive SummaryUpdated on Sep 16, 2024

Cisco Secure Firewall and Zscaler Cloud Firewall are both leading solutions in the cybersecurity space. Users often see Zscaler Cloud Firewall as the superior product due to its advanced features, despite the higher cost.

Features: Cisco Secure Firewall offers robust security management, excellent integration capabilities, and a high degree of configurability. Zscaler Cloud Firewall provides scalable cloud-native architecture, advanced threat protection, and comprehensive feature sets that exceed those of many competitors.

Room for Improvement: Cisco Secure Firewall needs more intuitive management capabilities, better integration with third-party tools, and smoother software updates. Zscaler Cloud Firewall requires better troubleshooting options, more detailed logging features, and enhanced offline functionality.

Ease of Deployment and Customer Service: Cisco Secure Firewall has straightforward deployment but requires significant initial configuration. Customers rate its service highly. Zscaler Cloud Firewall is reported to have seamless deployment and responsive support, with a slight edge in deployment simplicity and customer service.

Pricing and ROI: Cisco Secure Firewall is generally seen as cost-effective with a quicker return on investment. Zscaler Cloud Firewall, while more expensive, is perceived as offering good value for the price. The better ROI depends on specific needs and budget constraints of the users.

To learn more, read our detailed Cisco Secure Firewall vs. Zscaler Cloud Firewall Report (Updated: September 2025).

Buyer's Guide

Cisco Secure Firewall vs. Zscaler Cloud Firewall

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

Fortinet FortiGate

Mindshare comparison

As of September 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.7%, up from 18.6% compared to the previous year. The mindshare of Cisco Secure Firewall is 6.0%, up from 5.3% compared to the previous year. The mindshare of Zscaler Cloud Firewall is 0.4%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Firewalls Market Share Distribution
Product	Market Share (%)
Fortinet FortiGate	20.7%
Cisco Secure Firewall	6.0%
Zscaler Cloud Firewall	0.4%
Other	72.9%

Firewalls

Featured Reviews

Vasu Gala

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.

Read full review

Phil Shiflett

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.

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Vikram Srirama.

Deputy General Manager at Sagility

A highly scalable solution that helps monitor and block undesired, non-standard traffic

Zscaler Cloud Firewall is a cloud-based solution. Zscaler Cloud Firewall is a good product. Since it's a SaaS product, most of the maintenance of devices is eliminated, and it is bundled with your secure web gateway. People should use Zscaler Cloud Firewall for their remote users or work-from-home users. Overall, I rate Zscaler Cloud Firewall a nine out of ten.

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

"Its performance in fulfilling our requirements has been satisfactory."

"It blocks the vulnerabilities that can negatively impact us."

"We use a southern institution that's audited for IT security and the reporting that automatically comes off the unit makes it much easier to meet compliance standards and makes it easier as far as the amount of time that has to be spent to compile that information. If you get your reporting set up correctly when you initially set it up, you just select the one you want and hit print. The auditing trail on it is the best feature."

"Good anti-malware and web filtering features."

"The product is user-friendly and not complex."

"It's a user-friendly firewall. Most of the tasks are very simple. It's simple to configure and troubleshoot this firewall."

"The most valuable features of Fortinet FortiGate are the ease of use and there are several operating systems that can include the hardware capacities. In the newer releases, the resources were more useful because they were included in the operating system."

"A strong point of FortiGate is that the graphical interface is complete and easy to use, especially if we think there is a list of operations that we are able to perform inside."

More Fortinet FortiGate pros

"The most important feature is the VPN connection."

"What I found the most valuable about Cisco Secure Firewall is that if a client is educated about the solution, it can help him or her avoid many problems and mistakes."

"It joins all branches and permits employees to work outside their offices, but everything is based on high securities standards (PCI compliance)."

"The configuration was kind of straightforward from the command line and also from the ASDM. It was very easy to manage by using their software in Java."

"In v9.8 you are able to do active/backup HA with ASAv (Adaptive Security Virtual Appliance) deployed on MS Azure."

"Ease of configuration: It has gotten a lot easier to configure compared to the original Cisco Pix."

"Valuable features include AnyConnect, double translations, and an independent IPS module."

"The feature of Cisco Secure Firewall that I prefer the most is the use of ASDM where we visually are able to see all of our traffic when it comes through the firewall."

More Cisco Secure Firewall pros

"The solution is scalable."

"Zscaler is still a very good product."

"Most of the features that Zscaler has to offer, we will deploy."

"Once you have Zscaler running you have access to configure it however you want."

"Since it is really customizable, I can use it and avoid enabling access to the full network."

"If malicious traffic attacks our on-premises servers, then it gets blocked by Zscaler Cloud Firewall."

"Zscaler provides effective protection against various cyber threats ensuring a safe environment"

"The technical support from Zscaler was excellent."

More Zscaler Cloud Firewall pros

Cons

"I think they need to improve more in order to be a competitor with the leaders of the field."

"The web process often has a memory leak."

"Its reporting capabilities can be improved. It should have some out-of-the-box reporting capabilities and some degree of customization. The basic reporting that it currently has is not sufficient to create more usable reports. It needs some sort of out-of-the-box reporting. They try to make customers purchase FortiAnalyzer for this kind of reporting, which is an additional cost. Other firewall vendors, such as SonicWall and Sophos, provide this sort of reporting without any additional cost."

"I feel that the reporting needs to be improved."

"The solution’s stability could be improved because we sometimes faced some drops."

"Some features of Fortinet FortiGate are actually fee enabled that are inconvenient for deploying in production. Other issues relate to isolation with Cisco products and your server."

"The people we are working with are not able to configure MFA. They are having some technical issues. Fortinet needs to ensure that its partners are well-trained."

"The pricing of the solution should be more affordable"

More Fortinet FortiGate cons

"The IPS module is combined with the main operating system."

"it is not very user-friendly for the administration."

"VPNs are weak as this product still does not support route-based VPNs."

"You shouldn't have to use the ASDM to help manage the client."

"The software was very buggy, to the point it had to be removed."

"My impression of the visibility and control capabilities of Cisco Secure Firewall in managing encrypted traffic is that it can improve."

"Cisco Secure Firewall could be improved in terms of the GUI and management. It could be more intuitive, as sometimes there might be too many features and buttons that make it harder when we're trying to parse through information."

"UTM features would be nice or some NextGen features."

More Cisco Secure Firewall cons

"The issue right now is probably that Zscaler is not providing web browser isolation. Another solution, Menlo, offers this. For one customer, we had to send traffic to Menlo to do the isolation for us. It was requested by the customer so that they could integrate any iframe. Zscaler needs to add this type of feature in their next release."

"Zscaler Cloud Firewall should have a better understanding of all dynamic cloud applications."

"They do not provide a few components that are fundamental to differentiate the products"

"Apart from the issues associated with the product in areas like the DC performance issues and DC failover, Zscaler Cloud Firewall's IP should not have a proxy IP."

"When it comes to customer support, there is room for improvement in Zscaler's service."

"Pricing is a challenge."

"There are some areas it could improve when it comes to blocking, we have to block some things manually. For example, if we block a top-level domain we have seen that the new IPs come through, the IPs are not blocked. There should be some more granular way of doing it. My only request is if you're blocking something at a top level, the sub-level sub-domains and all those other IPs should be blocked too automatically."

"Certain criteria need to be met if you want to scale this solution."

More Zscaler Cloud Firewall cons

Pricing and Cost Advice

"I had to pay for the license for the firewall, but it is guaranteed to have updates. I expect a good service for it. It was about €1000 for a year, and there was no additional cost."

"It is a cost-effective solution that meets the user's needs."

"There is a subscription-based model to use Fortinet FortiGate. We pay annually for the solution along with the support. If you want to have all the updates, and security patches you will need to renew your support."

"It is not expensive as compared to Cisco."

"It is a good product from a price perspective versus functionality."

"The pricing for this solution is reasonable."

"Its pricing is competitive with other solutions."

"It is cheaper and more competitive compared to other options. For example, when comparing Palo Alto products to others, Palo Alto tends to be more expensive. If you compare Cisco's platform, including Cisco Meraki, with Fortinet products, you'll notice that Cisco's offerings are generally higher priced than Fortinet's firewall solutions."

More Fortinet FortiGate pricing and cost advice

"ASA pricing seems high compared to other firewalls, such as the Sophos XG models."

"Licensing, recently, has been getting more complicated. In particular, the Smart Licensing that came out is quite complicated. I don't know what's going on.... They call it Smart, but it's complicated. I prefer the traditional license where you buy it once."

"They're not too expensive. They're a little more expensive than other products, but you are getting the name, the company, and the support."

"The licensing features are getting more complicated. These should be simplified."

"Cisco is not really cheap, but there is great technology behind it."

"They seem to be at the top end in terms of pricing, but they are worth the price. They are probably a little bit lower than Palo Alto. If the customers are relying on Cisco products and they are thinking more in terms of scaling to another layer in a year, it is pretty much in a good price range."

"We normally license on a yearly basis. The hardware procurement cost should be considered. If you're virtual maybe that cost is eradicated and just the licensing cost is applied. If you have hardware the cost must be covered by you. All the shipping charges will be paid by you also. I don't thing there are any other hidden charges though."

"Pricing varies on the model and the features we are using. It could be anywhere from $600 to $1000 to up to $7,000 per year, depending on what model and what feature sets are available to us."

More Cisco Secure Firewall pricing and cost advice

"There are licensing costs, and I would not say that it's a cheap vendor."

"It comes at a significantly reduced cost while ensuring control and effectiveness."

"The licensing is on a yearly basis. It is somewhere around 30 or 40 pounds per user for our organization."

"It is not the most budget-friendly solution, but it's important to consider its overall value."

"There are different subscription models available."

"There is an annual license required for the use of the Zscaler Cloud Firewall."

"The product is a bit expensive compared to the solutions offered by its competitors, like Palo Alto. There is a need to make yearly payments towards the license in charges associated with the product."

"Zscaler is priced too high compared to the cost of Fortinet."

More Zscaler Cloud Firewall pricing and cost advice

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Comparison Review

it_user206346

Security Consultant at Webernetz.net - Network Security Consulting

Mar 11, 2015

Cisco ASA vs. Palo Alto Networks

Cisco ASA vs. Palo Alto: Management Goodies You often have comparisons of both firewalls concerning security components. Of course, a firewall must block attacks, scan for viruses, build VPNs, etc. However, in this post I am discussing the advantages and disadvantages from both vendors concerning…

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Top Industries

By visitors reading reviews

Computer Software Company

15%

Comms Service Provider

Manufacturing Company

Financial Services Firm

Computer Software Company

20%

University

Manufacturing Company

Comms Service Provider

Computer Software Company

12%

Manufacturing Company

Financial Services Firm

Construction Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	350
Midsize Enterprise	129
Large Enterprise	187

By reviewers
Company Size	Count
Small Business	180
Midsize Enterprise	126
Large Enterprise	212

By reviewers
Company Size	Count
Small Business	4
Midsize Enterprise	2
Large Enterprise	12

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?

When you compare these firewalls you can identify them with different features, advantages, practices and usage a...

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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...

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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 ...

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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...

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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...

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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...

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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, datac...

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What do you like most about Zscaler Cloud Firewall?

The product’s firewall and VPN package are fantastic compared to any other solution.

See all answers

What is your experience regarding pricing and costs for Zscaler Cloud Firewall?

Zscaler Cloud Firewall is quite expensive compared to competitors. However, it offered moderate value for money.

See all answers

Comparisons

Sophos XG vs Fortinet FortiGate

Compared 17% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 9% of the time

Cisco Meraki MX vs Fortinet FortiGate

Compared 4% of the time

WatchGuard Firebox vs Fortinet FortiGate

Compared 4% of the time

OPNsense vs Fortinet FortiGate

Compared 4% of the time

More Fortinet FortiGate Competitors

Palo Alto Networks WildFire vs Cisco Secure Firewall

Compared 9% of the time

Palo Alto Networks NG Firewalls vs Cisco Secure Firewall

Compared 8% of the time

Netgate pfSense vs Cisco Secure Firewall

Compared 4% of the time

OPNsense vs Cisco Secure Firewall

Compared 4% of the time

Cisco Meraki MX vs Cisco Secure Firewall

Compared 3% of the time

More Cisco Secure Firewall Competitors

Azure Firewall vs Zscaler Cloud Firewall

Compared 13% of the time

Check Point Quantum Force (NGFW) vs Zscaler Cloud Firewall

Compared 11% of the time

Palo Alto Networks NG Firewalls vs Zscaler Cloud Firewall

Compared 10% of the time

OPNsense vs Zscaler Cloud Firewall

Compared 8% of the time

Sangfor NGAF vs Zscaler Cloud Firewall

Compared 5% of the time

More Zscaler Cloud Firewall Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

September 2025

Download Fortinet FortiGate product report

Buyer's Guide

Cisco Secure Firewall

September 2025

Download Cisco Secure Firewall product report

Buyer's Guide

Zscaler Cloud Firewall

August 2025

Download Zscaler Cloud Firewall product report

Also Known As

No data available

Cisco Adaptive Security Appliance (ASA) Firewall, Cisco ASA NGFW, Adaptive Security Appliance, Cisco Sourcefire Firewalls, Cisco ASAv, Cisco Firepower NGFW Firewall

No data available

Overview

Fortinet FortiGate excels in providing integrated VPN, firewalling, and Unified Threat Management (UTM) with centralized management and high availability. It supports remote access and comprehensive threat protection, making it a preferred choice for securing networks.

Fortinet FortiGate offers a robust security platform with features such as strong intrusion prevention, application control, and web filtering. Its integration with Active Directory and SD-WAN functionality provides scalable solutions for large networks. Users appreciate its ease of use through centralized management interfaces, ensuring robust security with flexible configurations. However, FortiGate could enhance its graphical interface and technical support responsiveness, address firmware bugs and costly licensing, improve logging, integrate better with third-party tools, and strengthen scalability and memory for log storage. Complexity in configuration and the need for intuitive features are noted challenges, and there's a demand for advanced security, zero-trust capabilities, and AI integration.

What are the key features of Fortinet FortiGate?

VPN: Secure remote access and connectivity.
Firewalling: Protects networks from unauthorized access and attacks.
UTM: Offers a comprehensive approach to threat management.
SD-WAN: Optimizes traffic routing for efficient network performance.
Web Filtering: Controls and monitors web access and ensures Internet security.

What benefits or ROI should be considered?

Centralized Management: Simplifies administration and monitoring.
High Availability: Ensures consistent security and network availability.
Scalability: Adapts to the needs of growing networks.
Comprehensive Threat Protection: Provides robust security measures.
Ease of Use: Minimizes the complexity of security management.

Fortinet FortiGate is widely implemented across industries like education, finance, and government. Companies use it for firewall protection, VPN, and SD-WAN capabilities, ensuring secure perimeter and data center security. It facilitates remote access management and traffic routing optimization, offering reliable security and connectivity solutions.

Fortinet

Cisco Secure Firewall stands as a robust and adaptable security solution, catering to organizations of all sizes. It's designed to shield networks from a diverse array of cyber threats, such as ransomware, malware, and phishing attacks. Beyond mere protection, it also offers secure access to corporate resources, beneficial for employees, partners, and customers alike. One of its key functions includes network segmentation, which serves to isolate critical assets and minimize the risk of lateral movement within the network.

The core features of Cisco Secure Firewall are multifaceted:

Advanced threat protection is achieved through a combination of intrusion prevention, malware detection, and URL filtering technologies.
For secure access, the firewall presents multiple options, including VPN, remote access, and single sign-on.
Its network segmentation capability is vital in creating barriers within the network to safeguard critical assets.
The firewall is scalable, effectively serving small businesses to large enterprises.
Management is streamlined through Cisco DNA Center, a central management system.

The benefits of deploying Cisco Secure Firewall are substantial. It significantly reduces the risk of cyberattacks, thereby enhancing the security posture of an organization. This security also translates into increased productivity, as secure access means uninterrupted work. Compliance with industry regulations is another advantage, as secure access and network segmentation align with many regulatory standards. Additionally, it helps in reducing IT costs by automating security tasks and simplifying management processes.

In practical scenarios, Cisco Secure Firewall finds diverse applications. It's instrumental in protecting branch offices from cyberattacks, securing remote access for various stakeholders, safeguarding cloud workloads, and segmenting networks to isolate sensitive areas.

User reviews from PeerSpot reflect an overall positive experience with the Cisco Secure Firewall. Users appreciate its ease of configuration, good management capabilities, robust protection, user-friendly interface, and scalability. However, some areas for improvement include better integration capabilities with other vendors, maturity, control over bandwidth for end-users, and addressing software bugs.

In summary, Cisco Secure Firewall is a comprehensive, versatile, and reliable security solution that effectively meets the security needs of various organizations. It offers a balance of advanced protection, user-friendly management, and scalability, making it a valuable asset in the realm of network security.

Cisco

Zscaler enables the world’s leading organizations to securely transform their networks and applications for a mobile and cloud first world. Its flagship services, Zscaler Internet Access and Zscaler Private Access, create fast, secure connections between users and applications, regardless of device, location, or network. Zscaler services are 100% cloud-delivered and offer the simplicity, enhanced security, and improved user experience that traditional appliances or hybrid solutions are unable to match. Used in more than 185 countries, Zscaler operates the world’s largest cloud security platform, protecting thousands of enterprises and government agencies from cyberattacks and data loss.

Check more details: https://www.zscaler.com/produc...

Zscaler

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.

Zenith Live, Azure, Carlsberg Group

Buyer's Guide

Cisco Secure Firewall vs. Zscaler Cloud Firewall

September 2025

Free Report: Cisco Secure Firewall vs. Zscaler Cloud Firewall

Find out what your peers are saying about Cisco Secure Firewall vs. Zscaler Cloud Firewall and other solutions. Updated: September 2025.

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