1. Is ReliaQuest GreyMatter a SIEM, XDR, or MDR?

ReliaQuest GreyMatter is not a SIEM, XDR, or MDR, it is an agentic AI security operations platform—an AI layer on top of your existing security team that unifies and enhances your existing SIEM, EDR, cloud, and identity tools rather than replacing any single category. It connects telemetry from across all your technologies, leveraging AI to automate detection, investigation, response, threat hunting, and threat intel from a single platform.

2. Does GreyMatter replace my SIEM?

No, GreyMatter sits on top of your existing tools and processes telemetry where it already lives, meaning your data stays in your environment under your control with no secondary data lake or ReliaQuest-hosted repository. At-source detection keeps threat identification local to your source technologies, and GreyMatter Transit gives you additional filtering and storage optionality by detecting threats in transit before it reaches your SIEM—so you control what gets stored, where, and how much. This applies across multi-SIEM and multi-cloud environments.

3. How does GreyMatter detect threats without centralizing all data in a SIEM?

GreyMatter uses at-source detection to connect directly to EDRs, identity, email security, and cloud tools to identify threats where your data lives. GreyMatter’s native data pipeline, Transit, detects threats as data flows from point technologies to storage solutions. GreyMatter Transit normalizes and optimizes the telemetry and enables custom routing to reduce SIEM reliance.

4. How fast can GreyMatter detect and investigate threats?

With Transit, GreyMatter delivers sub-5-second MTTD by identifying threats in data before it reaches your SIEM. Once contained in seconds, GreyMatter investigates threats with a 33-minute MTTI.

5. Can GreyMatter automatically contain threats—isolate hosts, block IPs, and disable accounts?

Yes, GreyMatter can automatically isolate hosts, block IPs, remove malware, and execute other containment actions through configurable automated response workflows, within 5 minutes of detection.

6. How does GreyMatter handle novel or zero-day threats?

GreyMatter combines proactive threat hunting with rapid detection rule deployment to push detection rules across customer environments within hours, not days. GreyMatter Digital Risk Protection (DRP) also monitors dark web marketplaces and threat actor forums where zero-day exploits are bought and sold, providing early warning before active exploitation begins.

7. Can I build custom detections, threat hunts, and bring existing detections into GreyMatter?

Yes. Your team can build custom detections and conduct threat hunts using natural language across any of GreyMatter's 250+ supported technologies. Existing detections from your current tools carry over so you don't lose the work you've already invested. GreyMatter's detection engine runs these alongside its own platform detections across your environment.