1Security Microsoft Copilot Security vs Theom: 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..

Theom: Data & AI governance platform securing enterprise data estates. built by Theom. Core capabilities include Agentless data flow and identity mapping in real time, Least-privilege access enforcement with policies that follow data across cloud and on-premises, Safe GenAI data activation with leak prevention and toxic join 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. Theom differentiates with Agentless data flow and identity mapping in real time, Least-privilege access enforcement with policies that follow data across cloud and on-premises, Safe GenAI data activation with leak prevention and toxic join detection.

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

1Security Microsoft Copilot Security integrates with Microsoft SharePoint, Microsoft OneDrive, Microsoft Entra ID, Microsoft Purview, Microsoft Teams and 5 more. Theom integrates with Databricks Unity Catalog. Check integration compatibility with your existing security stack before deciding.

1Security Microsoft Copilot Security and Theom 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.