Microsoft Purview vs Nightfall for AI Data Protection
Microsoft Purview and Nightfall both address sensitive-data exposure, but their strongest operating contexts differ. Purview ties data posture and DLP to Microsoft 365, Azure, Fabric, Edge, endpoints, and supported integrations, with audit and investigation. Nightfall emphasizes cloud DLP for SaaS and endpoints, including browsers and GenAI use. This guide compares prerequisites and sensors, policy paths and evidence, migration tests, and the separate role of identity-aware HTTP enforcement.