1Security Microsoft Copilot Security vs Cosmian Data Protection Suite: 2026 Comparison

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.

Cosmian Data Protection Suite

Enterprise security teams protecting sensitive workloads in public cloud need Cosmian Data Protection Suite for its post-quantum encryption primitives, which competitors won't offer for another two years. The suite covers NIST PR.DS and PR.PS with encrypted key management and confidential computing enclaves that keep data encrypted even during processing, addressing the gap most DSPM tools leave in platform security. Skip this if your organization needs turnkey integration with existing DLP workflows or support for legacy on-premises infrastructure; Cosmian is cloud-native and cryptography-forward, not SIEM-friendly.