Foundations of Defender XDR for Security Operations

As cyber threats become more sophisticated, security teams need unified visibility to detect and respond to attacks across their entire digital estate. Defender XDR offers an integrated detection and response platform that coordinates threat defense across endpoints, identities, email, and cloud applications. This text-based course guides you through the core concepts of extended detection and response (XDR). You will transition from understanding basic security terminology to analyzing security alerts, managing incidents, and utilizing automated investigation tools to protect your organization. What you'll learn: 1. Understand the core architecture of Defender XDR and how it unifies security signals. 2. Configure alert policies to identify suspicious activities across endpoints and identities. 3. Analyze incident logs and track threat propagation pathways through written walkthroughs. 4. Apply automated investigation and remediation playbooks to resolve common security issues. 5. Practice basic threat hunting queries using Kusto Query Language (KQL) fundamentals. 6. Integrate modern zero-trust security concepts into your daily security operations workflows. The training begins with essential definitions of XDR and security operations center (SOC) workflows before moving into practical scenarios for incident investigation, threat hunting, and automated response. You will learn through clear, step-by-step written explanations and practical conceptual scenarios. This course is designed for beginner security analysts, IT administrators, and anyone looking to start a career in cybersecurity operations. No prior experience with XDR platforms is required. Start reading today to build a strong foundation in modern threat detection and incident response.