This volume forms part of the Microsoft Purview Series 2025 . It consolidates, into a single comprehensive text, a set of works that were originally published as independent volumes. The intent of this compilation is to provide an integrated reference resource that addresses the principal domains of security, governance, risk, and privacy as they relate to Microsoft Purview. The structure of the book is as follows: Book 1: Security Solutions – Examines the architecture, tools, and methodologies available for safeguarding organizational assets. Particular emphasis is placed on identity protection, threat management, and the defense of data across hybrid and cloud-based infrastructures. - Book 2: Risk and Governance Solutions – Analyzes the strategies and technologies employed to mitigate insider risk, monitor communication channels, and conduct eDiscovery. This section also highlights governance models that support accountability and transparency. - Book 3: Data Governance Solutions – Investigates the principles and practices of data stewardship, including lifecycle management, records retention, classification frameworks, and mechanisms for ensuring compliance with organizational and regulatory standards. - Book 4: Microsoft Priva – Provides a systematic overview of Microsoft’s privacy management solution. It considers both regulatory compliance obligations and the organizational imperatives of fostering data trust and responsible handling of personal information. By structuring the material in this manner, the book seeks to offer readers a logical progression through the interrelated disciplines of security, governance, risk management, and privacy, thereby equipping practitioners and scholars alike with a unified framework for understanding Microsoft Purview. Who is this Book for? This volume covers a comprehensive genre of audience, including : Security and risk leaders who need a roadmap that links controls to measurable business outcomes like loss avoidance, audit readiness, and productivity - Architects and engineers who implement Conditional Access, labelling, DLP, insider risk policies, and Defender XDR automation - Compliance, audit, and legal teams who manage investigations, eDiscovery, records, and evidence collection - Data stewards and owners who curate catalogues, lineage, and definitions that analytics and AI can trust. - Privacy program owners who must standardise subject rights responses and reduce privacy risk with Microsoft Priva.