Bhatnagar P. Mastering Microsoft 365 Security Technologies. Design...2025

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Bhatnagar P. Mastering Microsoft 365 Security Technologies. Design...2025

Textbook in PDF format Microsoft security technologies provide a robust, integrated defense against evolving cyber threats, spanning identity, endpoints, applications, and data across hybrid environments. It offers a unified and intelligent defense across an organization's digital landscape. This book will introduce readers to Microsoft security solutions. It covers Microsoft Defender, Microsoft Entra ID, and Microsoft Purview. Readers will learn how they can protect their organization across different attack vectors such as email, identity, data, endpoints, and applications. It discusses how to protect the user identities using Microsoft Entra ID, protect devices and applications using Microsoft Defender and Microsoft Sentinel, and protect organization data using Microsoft Purview. With a focus on real-world scenarios, hands-on labs, and expert guidance, cybersecurity professionals will gain a deep understanding of Microsoft security solutions and how to use them to protect their organizations from bad actors. By the end of this book, you will possess the practical knowledge and skills to design, implement, and manage a strong security posture across your organization's Microsoft infrastructure, confidently protecting identities, data, and applications from modern cyberattacks. Preface Security is top of mind for most organizations today. With the increasing number of cyber-attacks and shortage of skilled professionals, organizations are struggling to protect themselves from bad actors. At the same time, data is exploding making it even tougher for organizations to keep themselves and their data safe. M365 Security technologies provide end-to-end solutions for protecting and organisation’s data, identities and applications. This book covers end-to-end Microsoft security solutions. Section 1 of this book focuses on Microsoft’s identity and access management solution Microsoft Entra. The five chapters in this section introduce Microsoft Entra and then guide the reader through implementation of Microsoft Entra and managing, protecting and governing identities using Microsoft Entra ID Governance, Microsoft Entra Privileged Identity Management. It also introduces the reader to Microsoft Entra Secure Services Edge, Microsoft’s Zero Trust network access solution. Section 2 focuses on protecting the organization against threats. It introduces Microsoft Defender XDR as Microsoft’s extended detection and response solution. The chapters in this section shed light on how Microsoft Defender solutions can help protect devices, identities, M365 and non-M365 applications from external threats. Section 3 shifts the focus on protecting data. This section explains how organizations can protect structured and unstructured data in Microsoft 365 and multi-cloud environments using Microsoft Purview Information Protection, prevent accidental or intentional data exfiltration using Microsoft Purview Data Loss Prevention, identify insider risks and manage regulatory compliance and privacy. This book is designed to help experienced and novice security professionals become experts in administering and implementing Microsoft security solutions. Through practical examples, comprehensive explanations, hand-on labs, and a structured approach, this book aims to equip readers with a solid understanding of Microsoft security solutions. Whether you are a novice or an experienced learner, this book will serve as a valuable resource as you work towards advancing your cybersecurity career. Chapter 1: Introduction to Microsoft Entra - This chapter introduces the Microsoft Entra product family. Microsoft Entra is a family of products that help organisations create and manage users and govern user access to applications and services. This chapter introduces the components of the Microsoft Entra and how they can help organisations address their identity and access management requirements. It touches on the licensing options for each capability. This chapter explains how to create users using Microsoft Entra, the external collaboration capabilities using Microsoft Entra External ID. It also introduces new capabilities like Microsoft Entra Permissions Management, Microsoft Entra Verified ID and Global Secure Access. Chapter 2: Implementing Identity - Many organizations worldwide use on-premises Active Directory for managing their identities. When they decide to move to the cloud, they would want to provide their end users with seamless access to both cloud and on-premises applications and resources. This chapter describes how these organizations can sync their on-premises Active Directory identities to Microsoft Entra ID securely so that users can use the same credentials to access both on-premises and cloud resources. It goes on to explain the password synchronization methods like password hash sync and pass-through authentication. It explains the password protection capabilities available in Microsoft Entra ID and how these can be extended to on-premises Active Directory. It also talks about setting up single sign-on for applications and end user self-service in Microsoft Entra ID. Chapter 3: Identity Management - One of the main tasks of an identity and access management administrator is to make sure that the right system resources are accessible to the right users. This can be a challenging task since there are thousands of user identities in any organisation. This chapter introduces the group management features in Microsoft Entra ID to handle these identities and protect your organisation’s resources effectively. It also covers the key concept of role based access control, which aids in understanding the other Microsoft capabilities explained in this book. Chapter 4: Identity Protection - Identity is the key to access. Hence, a secure cloud deployment relies on a secure identity. Identity attacks have increased dramatically in recent years. Organisations need to enforce rigorous identity protection strategies while also offering a smooth work experience to their end users. This chapter describes the different identity protection features in Microsoft Entra ID like multifactor authentication, passwordless sign-in, unphishable credentials like passkeys. It also explains how Microsoft Entra ID Protection feature like risk-based conditional access policies can help prevent identity-based attacks. Chapter 5: Identity Governance - Each identity goes through a lifecycle that needs to be managed from when a user joins the organisation to when they leave. The user access must be kept up to date across the joiner-mover-leaver scenario and this must be done efficiently. This chapter shows how to use entitlement management to give the users the right access that they need to do their job. Access reviews can be used to check the user’s access to data and applications regularly, making sure that they do not have more access than necessary to fulfil their job roles. Lastly, it explores how Privilege Identity Management can be used to give just in-time access to the users that have the most sensitive access. Chapter 6: Microsoft Defender XDR - Organizations these days are exposed to a myriad of threats ranging from viruses, malware, phishing attacks, ransomware and more. They need to have effective threat protection strategies which include a combination of proactive prevention, real-time detection and rapid response. They need to deploy security solutions like firewalls, antivirus software, intrusion detection and protection systems to protect their networks, devices and data from potential harm. Microsoft Defender XDR is a suite of solutions that helps with detection, prevention, investigation and response of threats across endpoints, identities, email and applications. It provides integrated protection against sophisticated cyber-attacks. Chapter 7: Protecting Identities - Many organizations still have big on-premises Active Directory infrastructures that can be compromised by attackers. Organizations must have tools to identify attacks against these identities and protect them from being stolen or abused. This chapter explores how Microsoft Defender for Identity helps organizations avoid breaches by spotting threats, investigating and responding to incidents. Microsoft Defender for Identity is a cloud-based solution that helps your SecOps teams provide a modern identity and threat detection solution across hybrid environments. It helps stop breaches, identify threats, examine dubious activities and react to attacks. Chapter 8: Protecting Endpoints - In today’s hybrid working environment, users are using a multitude of devices from a multitude of locations. Gone are the days when users used to work only from their offices safe behind the corporate firewall. This exposes user endpoints to threats like never before. The attackers are also becoming very sophisticated. Organizations need modern and intelligent tools to protect their users’ devices from bad actors. Microsoft Defender from Endpoint is an enterprise endpoint security platform designed to help enterprise networks prevent, detect, investigate, and respond to advanced threats. Coupled with Microsoft Defender Vulnerability Management, it offers proactive protection and visibility into the vulnerabilities in the environment and provides recommendations to strengthen the security posture. Organizations today also use operational technology and Internet of Things devices. It is important for an organization to gain visibility into these devices and the threats surrounding them. Microsoft Defender for IoT provides device discovery and threat protection services for OT and IoT networks across cloud, on-premises and air-gapped infrastructure