1Security Microsoft Copilot Security vs PreVeil Drive: 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..

PreVeil Drive: E2E encrypted cloud file storage & sharing for regulated industries. built by PreVeil. Core capabilities include End-to-end encrypted cloud file storage, Secure file sharing with granular access controls (view, edit, comment permissions), Access revocation and link expiration date setting..

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. PreVeil Drive differentiates with End-to-end encrypted cloud file storage, Secure file sharing with granular access controls (view, edit, comment permissions), Access revocation and link expiration date setting.

1Security Microsoft Copilot Security is developed by 1Security. PreVeil Drive is developed by PreVeil. 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. PreVeil Drive integrates with Windows File Explorer, Mac Finder, Outlook, Gmail, Apple Mail and 3 more. Check integration compatibility with your existing security stack before deciding.

1Security Microsoft Copilot Security and PreVeil Drive 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.