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Trend Micro Deep Discovery 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

Trend Micro Deep Discovery
Ranking in Intrusion Detection and Prevention Software (IDPS)
6th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
28
Ranking in other categories
Advanced Threat Protection (ATP) (17th), Network Detection and Response (NDR) (6th)
Zscaler Cloud IPS
Ranking in Intrusion Detection and Prevention Software (IDPS)
21st
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 February 2026, in the Intrusion Detection and Prevention Software (IDPS) category, the mindshare of Trend Micro Deep Discovery is 3.4%, down from 4.6% compared to the previous year. The mindshare of Zscaler Cloud IPS is 1.6%, up from 0.8% 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%
Zscaler Cloud IPS1.6%
Other95.0%
Intrusion Detection and Prevention Software (IDPS)
 

Featured Reviews

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.
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

"The most valuable feature of Trend Micro Deep Discovery is its complete end-to-end visibility of threats."
"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."
"One of the most valuable features is the performance, since, so far, we have not faced any issues with Deep Discovery."
"The solution has extension-based features that help it to analyze the environment. The environment can have different platforms like Windows, Linux, and Mac. The tool will give a report which can confirm the analysis of the issues. You can also get clear information on threats or suspicious files."
"Trend Micro Deep Discovery is a very specific product for threat intelligence with smart protection."
"Generally speaking, it just gives us a broad understanding of exactly what kind of threats occur. The submission point, analyzing point, and virtualization are within the environment that it supports. It helped us to improve our security levels and protect our internal network from any threats outside."
"The tool's most valuable feature is its collaboration with other products. Integrating with other security products was simple and easy."
"The most valuable features are the protection and that it is fast."
"The product's most valuable feature is complete SSL inspection."
"Cloud IPS integration is seamless, and it uses a Zero Trust model. It also simplifies overall user access management."
"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 initial setup is straightforward and easy in comparison with other solutions."
"The initial setup process is easy."
 

Cons

"I would like the ability to analyze all files in our internal network, at the same time on different operating systems. Not just three of them, but as many as possible."
"All issues we faced related to false positives regarding many hashes and URLs specifically for mail gateway and sandboxing, which led us to open a threat ticket with Trend Micro support for validation."
"The scalability is sometimes limited."
"The main issue is its high cost."
"All issues we faced related to false positives regarding many hashes and URLs specifically for mail gateway and sandboxing, which led us to open a threat ticket with Trend Micro support for validation."
"The solution is not scalable as it is an agent product rather than a product designed for scalability."
"I would like to see integration with third-party tools to improve the visibility of the dashboards."
"Some of the end users may not be technically proficient, so they occasionally face problems due to a lack of knowledge."
"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."
"We encounter issues sharing IP addresses with other companies using the software."
"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."
"When it comes to scalability, the IPsec could be improved."
"There is always room for improvement."
 

Pricing and Cost Advice

"Compared to its competitors, Trend Micro Deep Discovery is a little expensive."
"Overall, Trend Micro Deep Discovery has proven to be a reliable solution that enhances our security posture while minimizing operational disruptions."
"The tool’s licensing costs depend on the customers."
"The tool's licensing costs are yearly. There are no additional costs associated with the product."
"Overall, the price is good."
"Trend Micro Deep Discovery is quite expensive compared to other endpoint security products."
"The licensing cost is a bit pricey. We pay a yearly subscription."
"The pricing is okay for some, and sometimes, some people find it expensive."
"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."
"The software has become more expensive at present."
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Financial Services Firm
8%
Healthcare Company
7%
Manufacturing Company
7%
Healthcare Company
11%
University
10%
Manufacturing Company
10%
Computer Software Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise6
Large Enterprise9
No data available
 

Questions from the Community

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...
Ask a question
Earn 20 points
 

Also Known As

Trend Micro Deep Discovery Inspector, Trend Micro Deep Discovery Analyzer
No data available
 

Overview

 

Sample Customers

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
Zenith Live, Azure, Carlsberg Group
Find out what your peers are saying about Trend Micro Deep Discovery vs. Zscaler Cloud IPS and other solutions. Updated: February 2026.
881,733 professionals have used our research since 2012.