Stellar Cyber
AI-native Open XDR platform providing full-stack security intelligence with automatic detection, correlation, and investigation.
What it does
Stellar Cyber is an AI-native Open XDR security platform that ingests data from any security tool and automatically applies ML to detect threats, correlate alerts, and accelerate investigation - targeting MSSP and mid-market organizations that need enterprise-grade security without large SOC teams. AI capabilities include ML behavioral analytics that model normal network, user, and endpoint behavior and detect deviations indicating attacks, AI alert correlation that automatically groups related security alerts from multiple sources into coherent attack stories, automated threat scoring that prioritizes incidents by severity and business impact, natural language security investigation that lets analysts describe what they're hunting in plain language, MITRE ATT&CK mapping that contextualizes detected behaviors, and AI-assisted response playbooks that guide analysts through remediation steps.
Why AI-NATIVE
Stellar Cyber is AI-native - ML automatic threat detection and correlation from multi-source security data without predefined rules are the core product architecture.
Best for
Mid-market organizations and MSSPs use Stellar Cyber for AI-powered XDR - full-stack security intelligence without requiring a large SOC team and Open XDR integrating existing security investments.
Large enterprises use Stellar Cyber for enterprise Open XDR - AI correlating security data from dozens of tools into a unified threat intelligence picture.
Limitations
Palo Alto Cortex and Microsoft Sentinel have stronger enterprise XDR market positions — Stellar Cyber differentiates on Open XDR flexibility and MSSP fit but faces well-established security platforms.
Stellar Cyber is a newer XDR vendor compared to established SIEM platforms — enterprises requiring long-term proven reliability and large implementation partner ecosystems may prefer more established vendors.
ML detection models require tuning during deployment to minimize false positives — security teams must invest in alert calibration before Stellar Cyber delivers optimal signal-to-noise.
Alternatives by segment
| If you need… | Consider instead |
|---|---|
| Enterprise XDR platform | Palo Alto Cortex |
| Cloud-native SIEM | Microsoft Sentinel |
| AI behavioral SIEM | Securonix |
Stellar Cyber pricing based on data ingestion and users. Not published. Mid-market and enterprise contracts negotiated. Annual contracts.
