Module Summary

What you learned in this module

Section 0.1: Mission, Course Structure, and Who This Is For defined what Microsoft 365 security operations means as a discipline and identified the gap between certification knowledge and operational competence. You learned that the course produces deployable security capability through the BYOT model: detection rules, investigation playbooks, and hardening checklists built in your own environment. You studied the five attack types that define M365 security operations: AiTM credential phishing, business email compromise, token replay and session hijacking, consent phishing and OAuth abuse, and insider threat. The four-phase course structure maps from foundations through the Microsoft security stack, Sentinel operations, and real-world investigation scenarios.

Section 0.2: SC-200 Exam Overview and Study Strategy mapped the April 2026 SC-200 exam restructure (from four domains to three) to this course's modules. Domain 1 (Manage a security operations environment, 40-45%) covers workspace configuration, data connectors, and detection engineering. Domain 2 (Respond to security incidents, 35-40%) covers investigation across all Defender products, including the new Security Copilot and agentic AI objectives. Domain 3 (Perform threat hunting, 20-25%) covers KQL-based hunting, Sentinel Graph, and Notebooks with MCP Server. The study strategy uses operational competence as the exam preparation path. Building real skills produces exam readiness as a side effect.

Section 0.3: How to Learn from This Course explained why the text-based format matches how security operators work: reading documentation during incidents and deployments rather than watching videos. You learned the section structure rhythm: concept first, concrete example, apply it, understand the output. The four learning aids (SVG diagrams, scenarios, anti-patterns, and principles) appear in every content section. Prerequisites were listed for self-assessment across networking, identity, M365, and operating system basics. The recommended cadence of five to eight hours per week produces course completion in ten to sixteen weeks.

Section 0.4: Lab Setup: M365 E5 Developer Tenant explained why E5 licensing is required. Six specific capabilities (Defender for Endpoint P2, Defender for Office 365 P2, Purview Audit Premium, Entra ID P2, Defender for Cloud Apps, and Sentinel integration) that the course depends on. You configured your tenant through one of three paths: the Developer Program instant sandbox, a 30-day E5 trial, or a paid single license. Verification confirmed that the Defender portal, Entra admin center, Conditional Access, Identity Protection, and Purview Audit are all accessible and functional.

Section 0.5: Lab Setup: Azure Subscription and Sentinel Workspace built the SIEM platform. You created an Azure subscription, deployed a Log Analytics workspace with appropriate naming and region selection, and enabled Microsoft Sentinel with its 31-day free trial. The three-layer architecture (subscription for billing, workspace for data storage, Sentinel for security intelligence). The workspace stores telemetry while Sentinel provides analytics rules, hunting queries, and detection capabilities on top. Pay-as-you-go pricing at approximately $4.30 per GB keeps lab costs under a dollar per day.

Section 0.6: Lab Setup: Sample Data and Validation connected your M365 tenant to Sentinel through the Defender XDR connector and the Entra ID connector. The Defender XDR connector streams incidents, alerts, and advanced hunting events including EmailEvents, DeviceEvents, and CloudAppEvents. The Entra ID connector populates SigninLogs and AuditLogs, the two most queried tables in identity investigations. You generated initial telemetry by signing in as test users, sending emails, and performing admin actions, then validated data flow with KQL queries against the populated tables.

What's next

Module 1 teaches the Defender XDR unified portal, the investigation platform where you spend most of your operational time. You learn the incident queue, cross-product alert correlation, the investigation graph, and the response actions available for containment and remediation. Every skill from Module 1 builds directly on the lab environment you just configured. The incidents you investigate, the queries you run, and the response actions you take all happen in the tenant and workspace you set up in Module 0. The foundation is built. Now you learn to operate it.