1Security Microsoft Copilot Security vs Matters DSPM: Side-by-Side Comparison (2026)

1Security Microsoft Copilot Security: Monitors and controls Microsoft Copilot data access and oversharing risks in M365. built by 1Security. Core capabilities include AI Data Visibility Dashboard mapping all files and SharePoint sites Copilot can access via Microsoft Graph, Oversharing Detection identifying files and folders with excessive permissions risking data leaks, Sensitivity Label Analysis auditing Microsoft Purview labels to prevent unauthorized AI access..

Matters DSPM: DSPM platform providing real-time sensitive data visibility, risk scoring & remediation. built by Matters. Core capabilities include Continuous sensitive data discovery across cloud, on-prem, SaaS, and endpoint environments, Automated asset classification by type, sensitivity, and compliance relevance, Shadow data and orphaned file detection..

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

1Security Microsoft Copilot Security differentiates with AI Data Visibility Dashboard mapping all files and SharePoint sites Copilot can access via Microsoft Graph, Oversharing Detection identifying files and folders with excessive permissions risking data leaks, Sensitivity Label Analysis auditing Microsoft Purview labels to prevent unauthorized AI access. Matters DSPM differentiates with Continuous sensitive data discovery across cloud, on-prem, SaaS, and endpoint environments, Automated asset classification by type, sensitivity, and compliance relevance, Shadow data and orphaned file detection.

1Security Microsoft Copilot Security is developed by 1Security. Matters DSPM is developed by Matters. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

1Security Microsoft Copilot Security and Matters DSPM serve similar Data Security Posture Management use cases: both are Data Security Posture Management tools. Review the feature comparison above to determine which fits your requirements.