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Welcome to the Security Foundations module for Microsoft 365. This module builds on your earlier lessons about devices, licenses, groups, and access. Now we focus on a central responsibility for any Microsoft 365 administrator: defending identities, devices, applications, and data from modern cyber threats. The curriculum maps security principles to practical Microsoft 365 controls so you can implement and operate a resilient security posture. Below is a concise overview of what this Security Foundations module covers.
  • Zero Trust security model and how its principles are applied across Microsoft 365.
  • Threat protection capabilities for detecting, investigating, and responding to phishing, malware, and account compromise.
  • Identity and authentication, including multifactor authentication (MFA) and modern authentication flows (for example, OAuth and token-based sign-ins).
  • Access management and the principle of least privilege to reduce attack surface.
  • Identity and access management for governance, policy enforcement, and lifecycle operations.
  • Identity monitoring, incident investigation, and remediation techniques.
A slide titled "Learning Objectives" showing a numbered vertical list of security topics: Understand Zero Trust, Implement Zero Trust, Threat Protection, and Identity and Authentication. The left side has a blue-green gradient background with colored numbered icons along a central spine.
These topics form the foundation of Microsoft 365 security and align with the controls and capabilities administrators use to protect an organization’s digital estate. As you progress through the module, you’ll repeatedly connect these security practices back to core platform concepts such as identity and device management, group and role design, and access policy configuration.
This module emphasizes practical protection and administrative controls: applying the Zero Trust model across Microsoft 365, configuring conditional access and MFA, managing identities with Microsoft Entra, and using threat protection and monitoring to detect and respond to incidents.

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Module breakdown (at-a-glance)

The table below summarizes each section with its primary focus and example Microsoft 365 controls you’ll learn about.

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Learning sequence

We will explore these areas in the following sequence:
  1. Zero Trust principles and how they map to Microsoft 365 controls.
  2. Threat protection for detecting and responding to phishing, malware, and compromised accounts.
  3. Identity and authentication best practices, including MFA and modern authentication.
  4. Access management and least privilege.
  5. Identity and access management for governance and policy enforcement.
  6. Identity monitoring and troubleshooting techniques for investigating security events.
A presentation slide titled "Learning Objectives" with a blue gradient panel on the left. On the right are three numbered items: 05 Access Management (control access using least privilege), 06 Microsoft Entra IAM (manage identities and access policies), and 07 Identity Monitoring (monitor and troubleshoot identity security).
Together, these lessons provide the foundational knowledge and administrative actions you need to protect identities, devices, applications, and data in a Microsoft 365 environment. These resources complement the module and provide detailed, up-to-date guidance for configuration and operational best practices.

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