NC Protect for SharePoint On-Premises is a data-centric security solution for SharePoint Server 2016, 2019, and SharePoint SE deployments. It extends protection to hybrid and cloud Microsoft 365 environments if needed. The product uses attribute-based access control (ABAC) to enforce real-time, conditional access and usage policies based on file metadata, user attributes, location, device, and time of day. Access is managed at the file level, allowing different visibility per user within the same SharePoint collection, including preventing site administrators from opening files they manage. Key capabilities include: - Automated data discovery and classification of sensitive or regulated content, with support for Microsoft Purview (MPIP) sensitivity labels - Fine-grained conditional access and sharing controls based on file classification and user attributes - Secure read-only access enforcement and hiding of sensitive files from unauthorized users - Dynamic, personalized digital watermarking applied to documents - In-transit data protection and automatic encryption of sensitive or classified files - Restriction of Microsoft ribbon functionality to limit user actions - Encryption or restriction of attachments sent via Exchange Email - Centralized policy management through a portal, with no client-side application required - Audit and reporting via a Results Viewer, with activity log integration into SIEM tools - Support for on-premises, cloud (M365), and hybrid environments from a single solution