--- title: "What is Open XDR" id: "39454" type: "page" slug: "what-is-open-xdr" published_at: "2023-10-03T11:32:28+00:00" modified_at: "2026-05-18T16:14:38+00:00" url: "https://stellarcyber.ai/platform/what-is-open-xdr/" markdown_url: "https://stellarcyber.ai/platform/what-is-open-xdr.md" excerpt: "What Is Open XDR? Open XDR enables security teams to protect cloud, on-prem, and IT/OT environments from a single platform—without changing their existing security stack. Bring your own endpoint tools like CrowdStrike, ESET, SentinelOne, or Microsoft Defender, along with any..." --- ## What Is Open XDR? Open XDR enables security teams to protect cloud, on-prem, and IT/OT environments from a single platform—**without changing their existing security stack**. Bring your own endpoint tools like CrowdStrike, ESET, SentinelOne, or Microsoft Defender, along with any other data sources. **Stellar Cyber integrates them seamlessly**, delivering unified, end-to-end protection while enhancing detection and response using the tools you already trust. [Open XDR Datasheet](https://d6i9zfdwymowh.cloudfront.net/wp-content/uploads/2026/06/05-26_OpenXDR-Datasheet.pdf) [Gartner Market Guide for XDR](https://info.stellarcyber.ai/Gartner-Market-Guide-XDR.html) Sumitomo CyFlare #### A conversation with... Erwin Eimers America CIO and CSO Your browser does not support the video tag. #### A conversation with... Joe Morin CEO Your browser does not support the video tag. ## The Case for Open XDR Stellar Cyber’s Any-EDR Open & Unifying Platform Meets Today’s Security Operations Challenges. ## Hard to Use Products - Products are hard to tune properly - Maintaining products requires manual processes - Many products designed for expert users - Even when implemented correctly, the products work in silos ## Not Enough People - Challenging to find experienced security analysts - Key analysts on the team are in high demand - Team members working well outside their comfort zone - Redundant manual tasks ## Data Avalanche - Every security product generates tons of alerts - With overlapping capabilities, many alerts are redundant - Security analysts find out late that they are working on the same incident - Easy for an attack to go unnoticed in sea of data ## Slow to Act - Too many alerts to investigate - Manual processes drive down efficiency - Attackers have more time to carry out their goals - Very little security teams can do to change things using current technology [Download ESG Open XDR Infographic](https://d6i9zfdwymowh.cloudfront.net/wp-content/uploads/2022/04/ESG-Infographic-Stellar-March-2022.pdf) ## What Is Open XDR? **Open XDR is a unified**, AI-powered approach to detection and response that collects and correlates data from all existing **security tools** to protect the entire enterprise attack surface effectively and efficiently. Open XDR, unlike “closed” XDR, works with any underlying security control, including any EDR, eliminating the need for organizations to essentially hand over the control of their security stack to any single vendor. Architecturally, [Open XDR](https://stellarcyber.ai/platform/what-is-open-xdr/) is about unifying and simplifying the entire security stack to improve detection and response radically. At any given organization, a security stack will consist of numerous capabilities like [SIEM](https://stellarcyber.ai/platform/capabilities-ng-siem/) , **[EDR](https://stellarcyber.ai/platform/universal-endpoint-detection-and-response-edr/) , [NDR](https://stellarcyber.ai/platform/capabilities-ndr/) , [SOAR](https://stellarcyber.ai/learn/siem-vs-soar/) ,** and more. These capabilities were never designed to work with each other, and teams spend too much time managing multiple tools, leading to today’s problems – Too many tools, not enough people, and not the right data. That’s where **Open XDR** comes in to unify all capabilities, correlate alerts from individual tools into holistic incidents, and simplify by reducing administrative overhead. AI and automation come in as the only technically feasible way of protecting the entire attack surface effectively and efficiently, which is why it is a key architectural attribute of Open XDR. The outcome of **Open XDR** is protecting your environments from threats from a single platform versus multiple tools with weak or non-existent connections band-aiding it all together. And the outcome of Open XDR is radically improved detection and response at a price anyone can afford. #### Read these additional resources for more on Open XDR: - [The Case For Open XDR (Open XDR vs. Native XDR)](https://d6i9zfdwymowh.cloudfront.net/wp-content/uploads/2021/06/06-21-The-Case-for-Open-XDR-WP-v1_alt.pdf) - [Open XDR vs. SIEM](https://d6i9zfdwymowh.cloudfront.net/wp-content/uploads/2021/10/02-22-Open-XDR-vs-SIEM-WP-v2.pdf) [See Which Organizations Are Using Open XDR](https://stellarcyber.ai/resources/stellarcyber-case-studies/) ## Value of Open XDR ## Radical Performance Unification of the security stack, with AI- powered detection and response, translates to a faster, better approach to security operations. ## No Vendor Lock-in Open XDR leverages existing security tools, not forcing you to migrate your security stack to a single vendor’s firewalls, SOAR, EDR, etc. ## Economics Simplification and consolidation of security products reduce the number of licenses, tool training, and overall capital required to run security operations. ## Buyer’s Guide: Key Attributes of an Open XDR Platform ### Open Architecture ### Open Architecture Produces visibility across the entire attack surface by integrating with all your security tools. ### Normalized Data ### Normalized Data Data from all integrated security tools are transformed into the same model so that they can be enriched and correlated for AI-powered detection and response. ### AI Powered ### AI Powered The scale of threats faced by organizations cannot be handled with manual rules or legacy signatures. AI for automated detection and correlation is a necessary part of the Open XDR equation. ### Cloud Native ### Cloud Native Scalable, micro service based technology underpinning the platform that allows it to deploy anywhere. ### Automated Response ### Automated Response To deliver the outcome of Open XDR, deep response actions need to be orchestrated from the same platform back into source security tools. ### Low Overhead ### Low Overhead Management of the entire Security Stack has to be simpler with an Open XDR platform. This can be measured in total licensing costs and administrative time. [Download Datasheet](https://d6i9zfdwymowh.cloudfront.net/wp-content/uploads/2025/04/09-25-SC_Data-Sheet_NDR_v4.pdf) ## Improved analyst efficiency and time-to-detection are common benefits from NDR. ## By ESG [Download Datasheet](https://d6i9zfdwymowh.cloudfront.net/wp-content/uploads/2023/03/esg-the-evolving-role-of-ndr.pdf) ## Key Features ### Deep Packet Inspection Collect L2 – L7 metadata and files for more than 4,000 network applications from packets. ### Secure, Flexible Data Storage Collect and store data to meet your specific needs, whether short or long term. ### Massive Data Reduction Reduce data volume collected by up to 500% compared to raw packets. ### Designed Around AI Sensors, collected data, threat intelligence, and data storage technologies all support AI, which drives [detection and response](https://stellarcyber.ai/what-is-open-xdr/) outcomes. ### Automated Correlation Correlate any network event with events occurring on your endpoints, servers, and users, and automatically see the scope of a threat. ### Built-In SOAR Take decisive response action with built-in SOAR. [Request a Demo](https://stellarcyber.ai/request-a-demo) ## Stellar Cyber’s Approach to Open XDR While integrating with your existing security tools as part of our open platform, [Stellar Cyber’s Open XDR Platform](https://stellarcyber.ai/platform/what-is-open-xdr/) also packages together multiple capabilities, all built on core technology that enables the outcome of Open XDR – radically improved detection and response at a price enterprise’s can afford. In our view, it’s not enough for Open XDR to be “extended,” that is a marginal improvement over status quo, and today’s security environment demands something dramatically different, which is why we believe [Open XDR](https://stellarcyber.ai/platform/what-is-open-xdr/) is Everything Detection and Response. From a technology standpoint, we believe the right approach to XDR is Open-first, partially-Native. If an [Open XDR platform](https://stellarcyber.ai/platform/what-is-open-xdr/) is only a “correlation layer” on top of existing tools including a SIEM, that does not deliver a unified experience and does not simplify the Security Stack. Conversely, a Native-only XDR platform requires an enterprise to move their entire infrastructure to one vendor. The Open-first, partially-Native approach to XDR is core to our [Open XDR platform](https://stellarcyber.ai/platform/what-is-open-xdr/) . The StellarCyber [Open XDR Platform](https://stellarcyber.ai/platform/what-is-open-xdr/) works with whatever you have already, gives you better visibility where you don’t yet have it, and helps you consolidate multiple capabilities under one platform if you choose to do so. “Users can enhance their favorite EDR tools with full integration into an XDR platform.” ### Jon Oltsik Senior Principal Analyst and ESG Fellow “Stellar Cyber is the most cost-effective way to adopt AI and XDR” ### Erwin Eimers CISO of Sumitomo Chemical “Sportscar Performance XDR for a Family Sedan Budget!” ### Gartner Peer Insights Director of IT ### 4.8 “The platform’s AI delivers a complete view of security events across our clients’ global infrastructure under one pane of glass” ### Todd Willoughby Director of Security & Privacy at RSM US “Stellar Cyber delivers built-in NDR, Next Gen SIEM and Automated Response” ### Rik Turner Principal Analyst, Security and Technology “Stellar Cyber reduced our analysis expenses and enabled us to kill threats far more quickly.” ### Central IT Department University of Zurich [For MSSPs](https://stellarcyber.ai/product/stellar-cyber-for-mssps/) [For Enterprises](https://stellarcyber.ai/product/sc-enterprises/)