1Security Monitoring Tool vs Graylog SIEM: Side-by-Side Comparison (2026)

1Security Monitoring Tool: Microsoft 365 user activity monitoring and behavior analysis platform. built by 1Security. Core capabilities include Unified activity monitoring across Entra ID, Exchange, SharePoint, and OneDrive, Behavior-based anomaly detection and alerting, Privileged access and permission change tracking..

Graylog SIEM: AI-powered SIEM platform for log management, threat detection, and IT ops. built by Graylog, Inc.. Core capabilities include AI-powered threat detection and automated investigations, Centralized log collection and analysis, Real-time monitoring with alerting..

Both serve the Security Information and Event Management market but differ in approach, feature depth, and target audience.

1Security Monitoring Tool differentiates with Unified activity monitoring across Entra ID, Exchange, SharePoint, and OneDrive, Behavior-based anomaly detection and alerting, Privileged access and permission change tracking. Graylog SIEM differentiates with AI-powered threat detection and automated investigations, Centralized log collection and analysis, Real-time monitoring with alerting.

1Security Monitoring Tool is developed by 1Security. Graylog SIEM is developed by Graylog, Inc.. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

1Security Monitoring Tool and Graylog SIEM serve similar Security Information and Event Management use cases: both are Security Information and Event Management tools. Review the feature comparison above to determine which fits your requirements.