1Security Microsoft Copilot Security is a Microsoft 365 add-on that maps and monitors what Microsoft Copilot can access across an organization's Microsoft 365 environment. It provides visibility into file, folder, and SharePoint site permissions through Microsoft Graph, detects oversharing risks before and after Copilot deployment, and audits sensitivity labels via Microsoft Purview. The platform consolidates permission data, sensitive data exposure, and activity signals from SharePoint, OneDrive, Entra ID, Teams, Exchange Online, and Purview into a unified dashboard. It includes a risk prioritization engine that ranks findings by severity and remediation urgency, automated one-click remediation workflows for permission misconfigurations, and compliance reporting mapped to GDPR, HIPAA, and ISO 27001 frameworks. The tool supports pre-deployment AI readiness assessments by identifying risky access paths before Copilot goes live, as well as post-deployment monitoring for permissions drift and anomalous access changes. It complements rather than replaces Microsoft Purview, DLP, and Defender by adding consolidated context and audit-ready workflows. Target use cases include regulated industries such as banking, insurance, public sector, and universities, as well as mid-size companies and enterprises managing distributed teams.