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Cisco Sourcefire SNORT vs Trend Micro Deep Discovery [EOL] comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 26, 2026

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)
15th
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
20
Ranking in other categories
No ranking in other categories
Trend Micro Deep Discovery ...
Ranking in Intrusion Detection and Prevention Software (IDPS)
6th
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
29
Ranking in other categories
Advanced Threat Protection (ATP) (17th), Network Detection and Response (NDR) (6th)
 

Mindshare comparison

As of February 2026, in the Intrusion Detection and Prevention Software (IDPS) category, the mindshare of Cisco Sourcefire SNORT is 3.1%, up from 2.2% compared to the previous year. The mindshare of Trend Micro Deep Discovery [EOL] is 3.4%, down from 4.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Intrusion Detection and Prevention Software (IDPS) Market Share Distribution
ProductMarket Share (%)
Trend Micro Deep Discovery3.4%
Cisco Sourcefire SNORT3.1%
Other93.5%
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.
reviewer2266119 - PeerSpot reviewer
Senior IT Security Engineer at a financial services firm with 5,001-10,000 employees
Has improved email security through advanced filtration and timely threat detection
I work with Trend Micro Apex One. I have used the Deep Discovery's Sandbox analysis feature, and we utilize another appliance known as Deep Discovery Analyzer, abbreviated as DDA. This tool makes analysis for URLs and attachments contained in inbound emails, so whenever we receive an email with a URL or attachment, it will be analyzed by Trend Micro Deep Discovery Analyzer. In evaluating Deep Discovery's real-time visibility on network traffic, it is important to note that we applied our Deep Discovery Analyzer for Trend Micro to conduct sandboxing specifically for email channels only, and we do not utilize it for network channels. For network channel sandboxing, we use a solution called FortiAnalyzer, which belongs to another team called network security. I assess Deep Discovery's effectiveness in identifying sophisticated attack patterns by looking at how it handles high traffic loads, and how effectively it can use its instances and images to analyze numerous URLs and attachments simultaneously. Additionally, I evaluate its ability to maintain round-robin or load balancing across different analyses without leaving samples queued for analysis. The performance is critical when the product updates for signatures are up-to-date, as this aids in the detection and classification of URLs and attachments without delay in the analysis process. On a scale of one to ten, I rate Trend Micro Deep Discovery a nine.

Quotes from Members

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

Pros

"It has a huge rate of protection. It's has a low level of positives and a huge rate of threat protection. It's easy to deploy and easy to implement. It has an incredible price rate compared to similar solutions."
"The most valuable feature is the visibility that we have across the virtual environment."
"The most valuable features of Cisco Sourcefire SNORT are the dashboard for monitoring events."
"The whole solution is very good, and stable."
"The solution is rather easy to use."
"Solid intrusion detection and prevention that scales easily in very large environments."
"It is quite an intelligent product."
"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 performance and stability are great."
"Trend Micro Deep Discovery Email Inspector includes its ability to perform mail detection and mail filtration against various email attacks such as phishing and spam, serving as an email gateway for both inbound and outbound traffic."
"Deep Discovery is scalable and compatible with other products. It's crucial to have that compatibility because it's an integral part of our security solution. It integrates smoothly. The interface is user-friendly, so administration is simple."
"There is no downtime or server vulnerability with this solution."
"Trend Micro Deep Discovery Email Inspector includes its ability to perform mail detection and mail filtration against various email attacks such as phishing and spam, serving as an email gateway for both inbound and outbound traffic."
"The product is very easy to install."
"The HTML file sandboxing is very good."
"The tool's most valuable feature is its collaboration with other products. Integrating with other security products was simple and easy."
 

Cons

"The implementation could be a bit easier."
"The customization of the rules can be simplified."
"I want to see a better dashboard for the product. The dashboard can be a bit modified or enhanced."
"There are problems setting up VPNs for some regions."
"The pricing needs to be improved. We have lots of low-budget clients around us. Budget constraints are always a deterrent in our market."
"I did not experience any pain points that required improvement. Maybe a couple of false-positives, but that's about it."
"With the next release, I would like to see some PBR, so that you can do the configuration with the features."
"I would like to have analytics included in the suite."
"The stability of the solution could be improved. It should be 100% stable, but it's not there right now."
"The price range is a little high."
"The solution could be more secure."
"I would like to see integration with third-party tools to improve the visibility of the dashboards."
"Trend Micro can improve the pricing in general. There is nothing else they can add or improve in the solution."
"Trend Micro Deep Discovery is a very expensive solution, making it very hard to sell."
"This solution could be improved with faster technical support and cheaper licensing prices."
"The main issue is its high cost."
 

Pricing and Cost Advice

"Licensing for this solution is paid on a yearly basis."
"If one is an extremely expensive product, and ten is cheap, I rate the tool's price as a five."
"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."
"The cost is per port and can be expensive but it does include training and support for three years."
"We have a three-year license for this solution."
"The pricing is okay for some, and sometimes, some people find it expensive."
"Overall, the price is good."
"Its price is fine, but Trend Micro can improve the pricing in general. It is a hardware solution. It is based on the number of nodes, and according to the number of nodes, clients decide which box they should acquire. They have to renew their license every year. It is subscription-based."
"The tool’s licensing costs depend on the customers."
"The licensing cost is a bit pricey. We pay a yearly subscription."
"The price of the solution is lower compared to the competition."
"Overall, Trend Micro Deep Discovery has proven to be a reliable solution that enhances our security posture while minimizing operational disruptions."
"Trend Micro Deep Discovery is quite expensive compared to other endpoint security products."
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Top Industries

By visitors reading reviews
University
13%
Comms Service Provider
9%
Computer Software Company
8%
Financial Services Firm
8%
Computer Software Company
10%
Financial Services Firm
8%
Manufacturing Company
7%
Healthcare Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise8
Large Enterprise7
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise6
Large Enterprise9
 

Questions from the Community

What do you like most about Cisco Sourcefire SNORT?
The product is inexpensive compared to leading brands such as Palo Alto or Fortinet.
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 do you like most about Trend Micro Deep Discovery?
The tool's most valuable feature is its collaboration with other products. Integrating with other security products was simple and easy.
What needs improvement with Trend Micro Deep Discovery?
Server Protect is not commonly used. When considering the Sandbox feature, it only inspects small files, and not all types of files are supported. The solution is very expensive. The solution is no...
 

Also Known As

Sourcefire SNORT
Trend Micro Deep Discovery Inspector, Trend Micro Deep Discovery Analyzer
 

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
Allied Telesis, Atma Jaya Catholic University of Indonesia, Babou, Blekinge County Council, Delacour, Hiroshima Prefectural Government, Live Nation Entertainment Inc., Mazda Motor Logistics Europe, McGill University Health Centre, Mikuni Corporation, OKWAVE, Sinar Mas Land, SWICA, UTOC Corporation
Find out what your peers are saying about Cisco Sourcefire SNORT vs. Trend Micro Deep Discovery [EOL] and other solutions. Updated: February 2026.
882,886 professionals have used our research since 2012.