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Zscaler Cloud Firewall pros and cons

Vendor: Zscaler

4.1 out of 5

19 reviews
93% willing to recommend

Pros & Cons summary

Zscaler Cloud Firewall is highly configurable and flexible, facilitating easy deployment without licenses or procurement. It offers comprehensive security features such as IPS, DLP, and sandboxing, ensuring a safe environment against cyber threats. Scalable protection is achieved through effective IP blocking and advanced tech such as Cloud Sandbox. Inadequacies include lack of intra-site segmentation, limited rule flexibility, and issues with ID-based policies affecting internet access levels and traffic management within branch offices.

Buyer's Guide

Get pricing advice, tips, use cases and valuable features from real users of this product.

Prominent pros & cons

PROS

Zscaler Cloud Firewall is highly configurable and offers flexibility, making it easy to deploy and operate without dealing with licenses, quotes, or procurement.

Zscaler Cloud Firewall provides comprehensive security features like sandboxing, IPS, web security, CASB, DLP, and effective protection against various cyber threats, ensuring a safe environment.

Zscaler Cloud Firewall offers scalable protection, enabling blocking of malicious and unauthorized IPs and sites, and provides advanced tech protection such as Cloud Sandbox.

Zscaler Cloud Firewall ensures in-depth visibility into the network, effectively filtering and securing traffic through multiple layers of protection, which is valued for troubleshooting purposes.

Zscaler Cloud Firewall is recognized as a leading vendor in the cloud space, providing reliable and effective customer support, which positively impacts workflow and organizational security.

CONS

Because Zscaler Cloud Firewall operates on the cloud, it doesn't allow the application of extra settings.

Web browser isolation is not currently provided by Zscaler Cloud Firewall, unlike some other solutions like Menlo.

Zscaler Cloud Firewall's policy and package flexibility could be improved, particularly in rule creation and inspection visibility.

Zscaler Cloud Firewall does not provide intra-site segmentation, leading to inadequate traffic flow management within branch offices.

There are issues with organizational ID-based policies resulting in incorrect internet access levels.

Zscaler Cloud Firewall Pros review quotes

MK

Security Subject Matter Expert at Orange

Jan 26, 2020

The solution offers good sandboxing.

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Director at Aquila ICT Solutions

Mar 19, 2020

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

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PM

Director at a tech services company with 1-10 employees

Feb 2, 2022

Includes advanced tech protection.

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Zscaler Cloud Firewall

Free Report: Zscaler Cloud Firewall Reviews and More

Learn what your peers think about Zscaler Cloud Firewall. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.

892,678 professionals have used our research since 2012.

Chief Executive Officer at a tech services company with 1-10 employees

Feb 22, 2021

The initial setup is straightforward.

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reviewer1026111

IT Security Manager at a retailer with 10,001+ employees

Aug 10, 2021

I like the ease of deployment and its flexibility. We don't need to deal with license, quotes, procurement, delivery, and installation. Everything is software-based, and it's very easy to operate.

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reviewer1712571

Implementation Engineer at a tech vendor with 201-500 employees

Nov 24, 2021

The solution is scalable.

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Sr. Cloud Security Architect at a tech services company with 11-50 employees

Dec 30, 2021

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

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reviewer1304067

Product Manager (Zscaler) at a tech services company with 201-500 employees

Jan 20, 2022

It helps a lot of companies to reduce their downtime. Also, It helps businesses in terms of being secured and protected from any threats.

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Network Manager Admin at Yamaha

Apr 6, 2022

The scalability is okay. We have around 2200 people using this solution.

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CS

Java Software Engineer at a computer software company with 5,001-10,000 employees

Jul 4, 2023

It is a stable solution.

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Show 9 more reviews (out of 19)

Zscaler Cloud Firewall Cons review quotes

MK

Security Subject Matter Expert at Orange

Jan 26, 2020

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.

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Director at Aquila ICT Solutions

Mar 19, 2020

Because it's on cloud, it doesn't allow application of extra settings.

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PM

Director at a tech services company with 1-10 employees

Feb 2, 2022

Data Leak Prevention is only for web filtering and there is no protection for email.

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Zscaler Cloud Firewall

Free Report: Zscaler Cloud Firewall Reviews and More

Learn what your peers think about Zscaler Cloud Firewall. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.

892,678 professionals have used our research since 2012.

Chief Executive Officer at a tech services company with 1-10 employees

Feb 22, 2021

The product could improve its integration with some legacy systems.

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reviewer1026111

IT Security Manager at a retailer with 10,001+ employees

Aug 10, 2021

It would be better if they improved their policy, package visibility, and flexibility while we're creating rules for inspection. It could also be cheaper or more things could be included in the basic package. In the next release, I would like better coverage in the Asia Pacific region and better quality of service.

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reviewer1712571

Implementation Engineer at a tech vendor with 201-500 employees

Nov 24, 2021

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.

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Sr. Cloud Security Architect at a tech services company with 11-50 employees

Dec 30, 2021

It would be nice to have some sort of a form factor, a physical form factor perhaps, or virtual machine that you could install on devices or on a cloud, and have some cloud computing.

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reviewer1304067

Product Manager (Zscaler) at a tech services company with 201-500 employees

Jan 20, 2022

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

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Network Manager Admin at Yamaha

Apr 6, 2022

We are having some issues with internet access being denied when organizational ID-based policies change. For example, a lower level employee ends up getting the same level of access as that of a higher level employee.

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CS

Java Software Engineer at a computer software company with 5,001-10,000 employees

Jul 4, 2023

Its technical support services could be better.

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Show 9 more reviews (out of 19)

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