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Corelight Open NDR vs Trend Micro Deep Discovery [EOL] comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 22, 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

Corelight Open NDR
Average Rating
8.8
Reviews Sentiment
7.6
Number of Reviews
7
Ranking in other categories
Network Traffic Analysis (NTA) (3rd), Network Detection and Response (NDR) (7th)
Trend Micro Deep Discovery ...
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
29
Ranking in other categories
No ranking in other categories
 

Featured Reviews

reviewer2834367 - PeerSpot reviewer
Growth And Strategy Lead at a computer software company with 51-200 employees
Network visibility has transformed how we detect nation state threats and protect critical industry
Before Corelight recently started pushing some of the agentic features, querying at times could be a little difficult, depending on your mastery of log scale. However, I think with a lot of the artificial intelligence that they are building in, it is getting a lot easier to query in the platform. I would definitely encourage them to continue down that path where anybody can hop into the platform and start running queries, whether it is a simple instruction like I want this, and an artificial intelligence process can actually build the query and do it. I think that would be super powerful. Cyber skill sets are in high demand, and there is a huge backlog in cyber talent. We cannot fill all the positions we need. The easier we can make these cyber systems for people to pick up and be effective on, I think is really key. Explainability of data is hyper important. In the past few artificial intelligence related updates we have gotten from Corelight, that has been one of the first questions our team has asked every time or that I have asked: show me what the model is doing, show me how it came to this analysis. Within Investigator platform, they are able to walk through and see exactly what data the artificial intelligence pulled from where and why it did what it did as far as making its suggestions. They have definitely built their system with artificial intelligence in mind up front, and having that openness as one of the key features of any of their artificial intelligence and machine learning processes in the platform is important. The issue with black boxes is obviously hallucinations from artificial intelligence and just not being able to trace to ground truth. When we are talking about these cyber incidents and being able to do forensics, you need to be able to pinpoint and tie everything together, and black boxes really obscure that and prevent you from doing so. Corelight has done a really good job of making sure that everything is explainable and everything is mapped when it comes to leveraging any of their artificial intelligence features.
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

"Technical support seems to be good."
"Corelight is easy to use."
"Corelight makes much easier the remediation of cyber attacks; instead of facing a chaotic amount of logs, Corelight provides correlated metrics that allow pivoting to find, in seconds, all the data related to an alert, detection, or asset."
"It's easy to create additional dashboards specific to supporting specific tasks."
"The most valuable feature is the embedded IDS from Suricata."
"Our company has seen massive improvements in cybersecurity position for our clients."
"It's an easy way for us to get visibility in a client's environment."
"It is easy to deploy and easy to handle."
"The product is very easy to install."
"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 HTML file sandboxing is very good."
"Sandboxing gives us a chance to identify malicious behavior, especially for unknown vulnerabilities, although it's rarely needed as a last resort after all other security measures have failed."
"As a security product, managing threats is crucial for my clients."
"One of the most valuable features is the performance, since, so far, we have not faced any issues with Deep Discovery."
"The most valuable feature of Trend Micro Deep Discovery is its complete end-to-end visibility of threats."
"The performance and stability are great."
 

Cons

"Machine learning could be a good improvement, but it's very costly."
"Machine learning could be a good improvement, but it's very costly."
"Corelight hasn’t added features in a long time."
"It's an expensive solution and the price could be reduced."
"Before Corelight recently started pushing some of the agentic features, querying at times could be a little difficult, depending on your mastery of log scale."
"The solution’s architecture is complex and difficult to understand. There are multiple machines and VMs."
"They can enhance the interface of the product. They can make it more interactive and also easier to use for feature access."
"In the next release, building a graphical user interface would be helpful."
"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."
"The main issue is its high cost."
"The scalability is sometimes limited."
"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 tool's configuration can be made easier."
"The solution could be more stable and offer more security."
"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."
 

Pricing and Cost Advice

"It's a yearly fee and depends on what you are looking for."
"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."
"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."
"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 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."
"Overall, the price is good."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Government
12%
Real Estate/Law Firm
8%
Computer Software Company
8%
Financial Services Firm
11%
Manufacturing Company
8%
Computer Software Company
8%
Healthcare Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise1
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise6
Large Enterprise9
 

Questions from the Community

Ask a question
Earn 20 points
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

Corelight Open NDR
Trend Micro Deep Discovery Inspector, Trend Micro Deep Discovery Analyzer
 

Overview

 

Sample Customers

CarrefourEdnonGrand Canyon EducationSektorCERTTietoevryVolkswagen Financial Services
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 Darktrace, Vectra AI, TrendAI and others in Network Detection and Response (NDR). Updated: April 2026.
893,221 professionals have used our research since 2012.