1Security Microsoft Copilot Security vs Immuta Data Access Governance: Side-by-Side Comparison (2026)

1Security Microsoft Copilot Security

Security teams deploying Microsoft Copilot across M365 need visibility into what data the AI can actually access before oversharing becomes a compliance liability, and 1Security Microsoft Copilot Security is built explicitly for that pre- and post-deployment control. The tool maps Copilot's permissions through Microsoft Graph, flags excessive access across SharePoint and OneDrive, and automates remediation of misconfigurations, addressing the asset management and data security gaps that most M365 tenants haven't solved yet. Skip this if your organization hasn't standardized on Microsoft's ecosystem or if you're looking for a Copilot governance tool that also covers other generative AI platforms; 1Security is Microsoft-only.

Immuta Data Access Governance

Data teams at mid-market and enterprise organizations who need policy enforcement across multiple data platforms without rebuilding governance from scratch should evaluate Immuta Data Access Governance. The natural language policy engine and attribute-based access control eliminate the manual policy transcription that kills most cross-platform rollouts, while real-time monitoring and unified auditing directly address NIST PR.AA and DE.CM requirements across disconnected data sources. Skip this if your data lives entirely in one ecosystem or if you're looking for a data catalog; Immuta assumes you already own the metadata store and want governance layered on top.