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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)
7th
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)
23rd
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 December 2025, in the Intrusion Detection and Prevention Software (IDPS) category, the mindshare of Trend Micro Deep Discovery is 3.7%, down from 4.8% compared to the previous year. The mindshare of Zscaler Cloud IPS is 1.4%, 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 Discovery3.7%
Zscaler Cloud IPS1.4%
Other94.9%
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

"There is no downtime or server vulnerability with this solution."
"The most valuable feature is that the user can customize images of virtual machines in the sandbox functionality. The other vendors only use images that were created by the vendor but not the customer, end-user or partner. This helps to detect advanced threats and attacks."
"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."
"Trend Micro Deep Discovery is a very specific product for threat intelligence with smart protection."
"The performance and stability are great."
"One of the most valuable features is the performance, since, so far, we have not faced any issues with Deep Discovery."
"This solution allows us to see anomalies, network traffic in our network, and zero-day threats."
"It is a very good solution. It is very light, and it is quite quick to figure out the problem in your network."
"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."
"Cloud IPS integration is seamless, and it uses a Zero Trust model. It also simplifies overall user access management."
"The initial setup is straightforward and easy in comparison with other solutions."
"The product's most valuable feature is complete SSL inspection."
 

Cons

"The product's scalability feature needs to be improved, as it is an area in the product with certain shortcomings."
"The solution needs to be able to integrate better with third-party infrastructure."
"This solution could be improved with faster technical support and cheaper licensing prices."
"The stability of the solution could be improved. It should be 100% stable, but it's not there right now."
"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."
"Trend Micro Deep Discovery is a very expensive solution, making it very hard to sell."
"I would like to see them create a rule where It could integrate with the network and start mitigating with auto-detection."
"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."
"There is always room for improvement."
"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."
"When it comes to scalability, the IPsec could be improved."
 

Pricing and Cost Advice

"Overall, the price is good."
"The tool's licensing costs are yearly. There are no additional costs associated with the product."
"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 licensing cost is a bit pricey. We pay a yearly subscription."
"The tool’s licensing costs depend on the customers."
"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."
"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."
"The product is not affordable for small and medium enterprises."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Financial Services Firm
8%
Healthcare Company
7%
Manufacturing Company
7%
Manufacturing Company
14%
Healthcare Company
11%
University
8%
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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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.
879,310 professionals have used our research since 2012.