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Cisco Sourcefire SNORT vs Zscaler Cloud IPS comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 19, 2024

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

Cisco Sourcefire SNORT
Ranking in Intrusion Detection and Prevention Software (IDPS)
12th
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
20
Ranking in other categories
No ranking in other categories
Zscaler Cloud IPS
Ranking in Intrusion Detection and Prevention Software (IDPS)
20th
Average Rating
9.0
Reviews Sentiment
6.8
Number of Reviews
5
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Intrusion Detection and Prevention Software (IDPS) category, the mindshare of Cisco Sourcefire SNORT is 3.0%, up from 2.6% compared to the previous year. The mindshare of Zscaler Cloud IPS is 2.1%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Intrusion Detection and Prevention Software (IDPS) Mindshare Distribution
ProductMindshare (%)
Cisco Sourcefire SNORT3.0%
Zscaler Cloud IPS2.1%
Other94.9%
Intrusion Detection and Prevention Software (IDPS)
 

Featured Reviews

reviewer2772102 - PeerSpot reviewer
Cloud Architect at a consultancy with 1-10 employees
Logging and customizable rules have helped improve threat monitoring and detection
The logging is mainly what I consider one of the best features with Cisco Sourcefire SNORT. Being able to log and store it in a file allows you to push it to a centralized repository. The logging and reporting help improve incident response. You should always be logging threats, any sort of misconfiguration, and anything that could be an issue. It's important to at least log and monitor it. The basic rules provide a good baseline in assessing Cisco Sourcefire SNORT's ability in providing real-time analytics for threat detection, but as a professional, you should look to constantly modify that baseline. They provide extensive customizability so you can define your own rules. The customizability allows it to be adaptable in protecting against diverse network threats to the constant change.
Utpal Sinha - PeerSpot reviewer
Sr Network Engineer at Momentive
Stable product with valuable SSL inspection features
We use Zscaler Cloud IPS for threat protection, full SSL inspection, and data center scalability. It integrates with multiple products, including cloud firewalls, cloud sandboxing, Cloud Security Broker (CSB), and Data Loss Prevention (DLP). It helps us allow or block specific TCP or UDP ports…

Quotes from Members

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

Pros

"Users have access to intelligent security automation as one of the features, which can easily automate your event impact assessment so your IPS policy tuning can be done as well as your network behavior analysis, and you can do real-time contextual awareness with correlation of events created on your applications, user devices, operating systems, or vulnerabilities, with all of this real-time data captured including your apps and port scans."
"The most valuable features of Cisco Sourcefire SNORT are the dashboard for monitoring events."
"In general, the features are all great. However, if I need to take hardware for ASA, because they need to upgrade to Firepower, we want to create rules. For that, most of the time we go to the command line. Right now Firepower is working really hard on the grid. You can apply all those rules to the grid. Even if you want to monitor the logs, for example, the activity will tell you which particular user has been blocked because of that rule. Firepower's monitoring interface is very good, because you can see each and every piece. ASA also had it, but there you needed to type the command and be under the server to see all that stuff. In Firepower you have the possibility to go directly to the firewall. The way the monitoring is displayed is also very nice. The feature I appreciate most in Firepower is actually the grid. The grid has worked very well."
"The most valuable feature is the visibility that we have across the virtual environment."
"With Cisco Sourcefire SNORT, we've been able to prevent and detect intrusion in our network and actually decrease our SLA (Service Level Agreement)."
"The product is inexpensive compared to leading brands such as Palo Alto or Fortinet."
"I would recommend this solution; it's reliable and scalable, with easy installation and integration."
"The most valuable feature is the ability to automatically learn the traffic in our environment, and change the merit recommendations based on that."
"Cloud IPS integration is seamless, and it uses a Zero Trust model, and it also simplifies overall user access management."
"The initial setup is straightforward and easy in comparison with other solutions."
"The initial setup process is easy."
"The best feature is that Zscaler allows for a separation between cloud applications and URL filtering. For example, under the cloud application segment, I can bypass Microsoft Office 365 without the need to add URLs manually. It's one click, so that's handy."
"The product's most valuable feature is complete SSL inspection."
 

Cons

"The main dashboard of Cisco Sourcefire SNORT could improve."
"To be frank, the product is not really stable, although they're working on that."
"We are unhappy with technical support for this solution, and it is not as professional as what we typically expect from Cisco."
"To be frank, the product is not really stable, although they're working on that. Whenever I go to the technical community with an issue, they will usually say that it is not there yet, but the technical team are working on it. The issues are not insolvable. I think they should just keep working on the product to make sure that the product can become very stable. The technical support is great. I appreciate that. We have a lot of communities supporting Firepower now, so you can find help for whatever issue you have."
"The cloud can be improved."
"The solution's approach to managing traffic blocking is confusing and impractical."
"Performance needs improvement."
"This is a good solution, but some others may have some advantages."
"We recently had a significant issue with Zscaler. I think they have too many customers and some of their connection edge nodes went down because there were too many requests. I think they aren't scaling enough to keep up with the demand in some areas. That's one thing they should improve."
"There is always room for improvement."
"They have given limited free access for a year. Instead, they should increase the file size and give limited free access for around two months. It will allow engineers to evaluate the product."
"We encounter issues sharing IP addresses with other companies using the software."
"When it comes to scalability, the IPsec could be improved."
 

Pricing and Cost Advice

"Licensing for this solution is paid on a yearly basis."
"The cost is per port and can be expensive but it does include training and support for three years."
"I don't know the exact amount, but most of the time when I go to a company with a proposition, they will say, "This thing that you are selling is good, but it's expensive. Why don't you propose something like FortiGate, Check Point, or Palo Alto?" Cisco device are expensive compared to other devices."
"We have a three-year license for this solution."
"If one is an extremely expensive product, and ten is cheap, I rate the tool's price as a five."
"The software has become more expensive at present."
"The product is not affordable for small and medium enterprises."
"Zscaler has so far been solely responsible for all the sales we have done with it, so it would be more suited than us to address any issues concerning the pricing."
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Top Industries

By visitors reading reviews
Construction Company
13%
Financial Services Firm
8%
Comms Service Provider
8%
Outsourcing Company
6%
Healthcare Company
12%
Manufacturing Company
9%
Comms Service Provider
9%
Construction Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise9
Large Enterprise7
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Cisco Sourcefire SNORT?
If one is an extremely expensive product, and ten is cheap, I rate the tool's price as a five. There are some other tools in the market that are more expensive than Cisco. There are no additional c...
What needs improvement with Cisco Sourcefire SNORT?
I have not had much experience with the community-driven rule set while utilizing Cisco Sourcefire SNORT. I don't have experience with recognizing zero-day vulnerabilities, but based on my knowledg...
What is your primary use case for Cisco Sourcefire SNORT?
Endpoint protection is the main use case. The main aspect involves specifying different rules, and when network traffic hits these rules, it will try to block the traffic or at least log the traffi...
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Also Known As

Sourcefire SNORT
No data available
 

Overview

 

Sample Customers

CareCore, City of Biel, Dimension Data, LightEdge, Lone Star College System, National Rugby League, Port Aventura, Smart City Networks, Telecom Italia, The Department of Education in Western Australia
Zenith Live, Azure, Carlsberg Group
Find out what your peers are saying about Cisco Sourcefire SNORT vs. Zscaler Cloud IPS and other solutions. Updated: August 2026.
908,800 professionals have used our research since 2012.