Microsoft Defender, IT Atlas

Overview

Defender for Endpoint provides EDR; Defender for Office 365 protects email and collaboration; Defender for Identity monitors on premises Active Directory; Defender for Cloud Apps governs SaaS usage; Defender for Cloud covers cloud workload posture and protection.

Their value together is cross domain correlation: a phishing message, the endpoint that opened it and the identity that was then abused appear as one incident rather than three separate alerts.

Security considerations

Verify onboarding coverage across every platform and server; unonboarded systems are silent.
Review automated investigation and response settings so remediation authority matches your risk appetite.

Related topics

EDR

Endpoint Detection and Response continuously records endpoint behaviour, detects malicious activity, and enables remote investigation and containment.

Email Security

Protecting the most used attack channel with authentication, filtering, link and attachment analysis, and user reporting.

Microsoft 365

An integrated productivity, collaboration, identity, security and management suite delivered as a single tenant scoped cloud service.

SIEM

Security Information and Event Management centralises telemetry from across the estate, correlates it into detections, and supports investigation and reporting.

Cloud Security

Securing cloud platforms through identity, configuration posture, network controls, workload protection and control plane monitoring.