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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) (8th)
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 January 2026, in the Intrusion Detection and Prevention Software (IDPS) category, the mindshare of Trend Micro Deep Discovery is 3.5%, down from 4.7% compared to the previous year. The mindshare of Zscaler Cloud IPS is 1.5%, 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 Discovery3.5%
Zscaler Cloud IPS1.5%
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

"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."
"The most valuable feature of Trend Micro Deep Discovery is its complete end-to-end visibility of threats."
"I like the sales operations testing. and support."
"The reporting is very good, providing detailed analysis in a short amount of time."
"It is a very good solution. It is very light, and it is quite quick to figure out the problem in your network."
"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 most valuable features are the protection and that it is fast."
"The tool's most valuable feature is its collaboration with other products. Integrating with other security products was simple and easy."
"Cloud IPS integration is seamless, and it uses a Zero Trust model. It also simplifies overall user access management."
"The product's most valuable feature is complete SSL inspection."
"The initial setup is straightforward and easy in comparison with other solutions."
"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 process is easy."
 

Cons

"Deep Discovery is easy to manage, but there is still room for improvement on the administration and operations side. Competing products have a cleaner interface that makes it easier to manage their products. Trend Micro offers a lot of features in one product suite, but it can be unwieldy for the customer to manage all that with a single interface."
"I would like to see integration with third-party tools to improve the visibility of the dashboards."
"Additionally, better scanning capabilities for third-party applications would ensure comprehensive security without the need for exclusions."
"I would like to see them create a rule where It could integrate with the network and start mitigating with auto-detection."
"The solution could be more secure."
"Trend Micro Deep Discovery's technical support could be improved, and it could be made more active."
"The stability of the solution could be improved. It should be 100% stable, but it's not there right now."
"There are certain aspects of flexibility in the policies that should be added to Deep Discovery."
"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."
"We encounter issues sharing IP addresses with other companies using the software."
"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."
 

Pricing and Cost Advice

"The pricing is okay for some, and sometimes, some people find it expensive."
"The licensing cost is a bit pricey. We pay a yearly subscription."
"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."
"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."
"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."
"The price of the solution is lower compared to the competition."
"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
Computer Software Company
11%
Financial Services Firm
9%
Healthcare Company
7%
Manufacturing Company
7%
Manufacturing Company
13%
Healthcare Company
11%
University
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...
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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: December 2025.
881,082 professionals have used our research since 2012.