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Stellar Cyber Open XDR vs Trend Micro Deep Discovery comparison

 

Comparison Buyer's Guide

Executive Summary

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

Stellar Cyber Open XDR
Ranking in Network Detection and Response (NDR)
20th
Average Rating
0.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
Security Information and Event Management (SIEM) (47th), User Entity Behavior Analytics (UEBA) (24th), Endpoint Detection and Response (EDR) (58th), Network Traffic Analysis (NTA) (19th), Security Orchestration Automation and Response (SOAR) (24th), Extended Detection and Response (XDR) (34th), Identity Threat Detection and Response (ITDR) (19th)
Trend Micro Deep Discovery
Ranking in Network Detection and Response (NDR)
8th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
28
Ranking in other categories
Intrusion Detection and Prevention Software (IDPS) (6th), Advanced Threat Protection (ATP) (17th)
 

Mindshare comparison

As of January 2026, in the Network Detection and Response (NDR) category, the mindshare of Stellar Cyber Open XDR is 2.5%, up from 2.1% compared to the previous year. The mindshare of Trend Micro Deep Discovery is 3.3%, down from 4.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Detection and Response (NDR) Market Share Distribution
ProductMarket Share (%)
Trend Micro Deep Discovery3.3%
Stellar Cyber Open XDR2.5%
Other94.2%
Network Detection and Response (NDR)
 

Featured Reviews

JC
Global Director, Commercial Operations at Promasecure LLC
Automated security monitoring increases efficiency, but market visibility needs improvement
I am currently evaluating Stellar Cyber Open XDR in terms of their support. I do not see any major areas for improvement as of now. Their support is good, and the team is small, enabling them to cater to everyone effectively. While I have not encountered significant drawbacks so far, market penetration is challenging due to the product's newness, despite its flexibility and customization features. I find their user interface to be quite good.
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 can integrate with almost any cybersecurity tool available in the market."
"Stellar Cyber Open XDR offers these functionalities at a more affordable price, making it easier for me to position it with price-sensitive customers."
"The performance and stability are great."
"The most valuable features are monitoring for advanced persistent threats, the system runs in a sandbox allowing for effective zero-day exploits management, and the Inspector has a built-in sandbox."
"I like the sales operations testing. and support."
"One of the most valuable features is the performance, since, so far, we have not faced any issues with Deep Discovery."
"It is a very good solution. It is very light, and it is quite quick to figure out the problem in your network."
"As a security product, managing threats is crucial for my clients."
"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."
 

Cons

"Support is an issue because they have a limited number of resources."
"I would rate the stability at about five to six. The platform requires some fine-tuning, especially when integrating data sources and creating connectors."
"Scalability becomes an issue when managing a higher number of customers."
"The solution needs improvement in terms of pricing."
"The stability of the solution could be improved. It should be 100% stable, but it's not there right now."
"The solution needs to be able to integrate better with third-party infrastructure."
"The tool's configuration can be made easier."
"The solution should support multiple platforms in Windows, Linux, and Mac. Customers can have different software types. The virtual environment should be able to install and analyze them. The tool also gives only a minimum level of extension support. It may not be able to extract files and give details about them. I would also like to see third-party product integration in the tool. The solution's current integration is only with Trend Micro products only."
"There are certain aspects of flexibility in the policies that should be added to Deep Discovery."
"The product's scalability feature needs to be improved, as it is an area in the product with certain shortcomings."
 

Pricing and Cost Advice

"It’s a single license platform."
"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."
"Compared to its competitors, Trend Micro Deep Discovery is a little expensive."
"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."
"The price of the solution is lower compared to the competition."
"Trend Micro Deep Discovery is quite expensive compared to other endpoint security products."
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Top Industries

By visitors reading reviews
Manufacturing Company
12%
Computer Software Company
11%
Comms Service Provider
8%
Government
7%
Computer Software Company
12%
Financial Services Firm
8%
Healthcare Company
7%
Manufacturing Company
7%
 

Company Size

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

Questions from the Community

What is your experience regarding pricing and costs for Stellar Cyber Open XDR?
Pricing is a major benefit of Stellar Cyber Open XDR. I rate it between three and four on the cost scale. It offers functionalities at a significantly lower cost than rival products, enabling me to...
What needs improvement with Stellar Cyber Open XDR?
I am currently evaluating Stellar Cyber Open XDR in terms of their support. I do not see any major areas for improvement as of now. Their support is good, and the team is small, enabling them to ca...
What is your primary use case for Stellar Cyber Open XDR?
I use Stellar Cyber Open XDR ( /products/stellar-cyber-open-xdr-reviews ) as a 24/7 security monitoring tool, especially for customers with large and medium networks. It eliminates the need for a d...
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

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

Overview

 

Sample Customers

Sumitomo Chemical USA, PlastiPak Packaging, University of Denver, Large California State Agency, Large Midwestern American City
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 Stellar Cyber Open XDR vs. Trend Micro Deep Discovery and other solutions. Updated: December 2025.
879,425 professionals have used our research since 2012.