Overview
Product Information on Open XDR Platform
Updated 13th October 2025
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Overall experience with Open XDR Platform
IT Security & Risk Management Associate
<50M USD, IT ServicesFAVORABLE
“Cloud and On-Premises Deployments Differ as Usability Remains a Work in Progress”
My company uses Stellar Cyber as part of the security services we deliver to various clients. The platform offers extensive capabilities and a high degree of customization. Its ability to integrate with a wide range of data sources provides broad and valuable visibility into an organization's security posture.
The multi-tenant functionality allows for relatively easy management of multiple clients, enabling granular configurations for each tenant.
Both cloud and on-premises deployments are viable options. However, for the cloud version, the experience depends on whether the solution is hosted by a third party or by your own organization. When hosted externally, the lack of root access restricts certain features that rely on elevated privileges.
In terms of usability, this is where we encounter the biggest challenge. Much depends on the user's prior experience with similar tools. For users familiar with modern NDR solutions, the Stellar Cyber interface may feel somewhat cumbersome and not particularly intuitive. Personally, I find the interface a bit counterintuitive compared to other platforms, but it ultimately gets the job done. Over the past two years of using Stellar Cyber, I've seen consistent improvements with every update - or as I like to tell my colleagues, "It's a work in progress".
On the support side, the Stellar Cyber team is highly responsive and attentive to customer needs.
Their learning platform offers a wide range of courses to support investigation workflows, along with regular webinars that provide tips, best practices and updates on new features.
Do I consider Stellar Cyber the best NDR on the market? No. Do I believe it has the potential to become the best? Absolutely. The progress I've observed over the years has convinced me that the solution is moving in the right direction.
IT Services Associate
<50M USD, IT ServicesCRITICAL
“AI Foundation Brings Benefits and Challenges to Cybersecurity SIEM Platform”
Overall the product is solid but not without flaws, the most common of which are tied to its foundation of AI learning and correlation. As AI has become more prevalent, the uses in the cybersecurity space are rather straightforward, but not without growing pains, which I feel is a good way to describe some of the issues that have cropped up in my time with this product. The support teams seem to understand this and have definitely been helpful, quick, and understanding in this regard.
About Company
Company Description
Stellar Cyber is a Silicon Valley-based organization specializing in providing a comprehensive and integrated Open XDR platform dedicated to simplifying security processes. The platform's prime focus is to aid lean security teams of varying skills in fortifying their environment securely. By utilizing Stellar Cyber's platform, organizations can minimize risk through early and accurate detection and remediation of threats. Moreover, the platform allows for reduction in costs and enhancement of analyst productivity, featuring significant improvements in mean time to detect (MTTD) and mean time to recover (MTTR).
Company Details
Company type
Private
Year Founded
2017
Head office location
San Jose, United States
Number of employees
51 - 200
Website
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Open XDR Platform Likes & Dislikes
Multi-tenant management. Huge number of data sources integration. Highly customizable(alerts, automation)
The product itself has a solid variety of features compared to its competition, and the correlation engine seems to work well when bringing together multiple different detections.
Powerful detection capabilities using own sensors. Automatic correlation using all data sources. The graph screen that makes it easy to understand the status of attacks.
The user interface and workflow is not very intuitive. Lack of sigma rules edit for default alerts (coming in a future update). Hardware requirements for the on-premises version.
Being so heavily AI-based, this leaves some room for mistakes and miscalculations, which can occasionally be frustrating to manage. There have also been cases where significant changes were made to the platform, specifically alert logic, without ample attention being brought to them.
For unsupported data sources, a request will be made and need to wait for support. Even if the log format of the linked product has been updated, there are cases where this has not been reflected. The SaaS version does not allow to import backed-up cold data myself but by support.
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- IT Security & Risk Management Associate<50M USDIT ServicesReview Source
Cloud and On-Premises Deployments Differ as Usability Remains a Work in Progress
My company uses Stellar Cyber as part of the security services we deliver to various clients. The platform offers extensive capabilities and a high degree of customization. Its ability to integrate with a wide range of data sources provides broad and valuable visibility into an organization's security posture. The multi-tenant functionality allows for relatively easy management of multiple clients, enabling granular configurations for each tenant. Both cloud and on-premises deployments are viable options. However, for the cloud version, the experience depends on whether the solution is hosted by a third party or by your own organization. When hosted externally, the lack of root access restricts certain features that rely on elevated privileges. In terms of usability, this is where we encounter the biggest challenge. Much depends on the user's prior experience with similar tools. For users familiar with modern NDR solutions, the Stellar Cyber interface may feel somewhat cumbersome and not particularly intuitive. Personally, I find the interface a bit counterintuitive compared to other platforms, but it ultimately gets the job done. Over the past two years of using Stellar Cyber, I've seen consistent improvements with every update - or as I like to tell my colleagues, "It's a work in progress". On the support side, the Stellar Cyber team is highly responsive and attentive to customer needs. Their learning platform offers a wide range of courses to support investigation workflows, along with regular webinars that provide tips, best practices and updates on new features. Do I consider Stellar Cyber the best NDR on the market? No. Do I believe it has the potential to become the best? Absolutely. The progress I've observed over the years has convinced me that the solution is moving in the right direction. - Engineering Manager<50M USDIT ServicesReview Source
Automatic Alert Correlation Highlights Suspicious Behavior Across Multiple Data Sources
First of all, there are very few XDR vendors that offer their own in-house NDR and while it is significantly cheaper than dedicated NDR device. It also includes features such as Sandbox and IDS. Because it's built in-house, it can correlate alerts from other data sources, allowing to manage suspicious behavior, from intrusions to reconnaissance and lateral movement as a single incident case which is its greatest advantage. User of dedicated NDR device rarely correlate alerts with other data sources, so even in this respect, the benefits of using Stellar Cyber a regret. Sensors for servers are also available, allowing to detect threats that EDR is weak at and threat that require an ITDR product. Everything, including cloud integration is provided via GUI, so it can be installed in no time and with no complicated setup. The alerts detected after machine learning will likely reveal suspicious behavior that many companies had previously been unaware of. - IT Associate<50M USDIT ServicesReview Source
Efficient Daily Operations Achievable After Overcoming Noisy Initial Configuration
As a primary admin, I've found that Stellar Cyber really delivers on the "Open" part of XDR. To be fair, you have to put in the work early on; initial setup, agent installs, tuning of filtering rules, which all take some time to get right. Once everything is dialed in, the platform is very easy to live in daily. It's been a huge help for our team in terms of visibility without needing a massive SOC in the MSSP space. - Operations Manager50M-1B USDIT ServicesReview Source
A Powerful, Case-Centric XDR Platform that Unifies Multi-Tenant SOC Operation
As a SOC Manager operating in a multi-tenant enterprise environment, my experience with Stellar Cyber has been transformative. The platform has successfully shifted our operations from a traditional alert-centric model to a more efficient case-centric approach. - IT Services Associate<50M USDIT ServicesReview Source
AI Foundation Brings Benefits and Challenges to Cybersecurity SIEM Platform
Overall the product is solid but not without flaws, the most common of which are tied to its foundation of AI learning and correlation. As AI has become more prevalent, the uses in the cybersecurity space are rather straightforward, but not without growing pains, which I feel is a good way to describe some of the issues that have cropped up in my time with this product. The support teams seem to understand this and have definitely been helpful, quick, and understanding in this regard.
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