A cloud-native Security Information and Event Management (SIEM) and Security Orchestration, Automation, and Response (SOAR) solution from Microsoft. Like a security command center that never sleeps, Sentinel collects data from across your entire digital estate — cloud services, on-premises servers, firewalls, applications, and endpoints — then uses AI and machine learning to detect threats, investigate incidents, and respond automatically. It integrates natively with Microsoft 365 and Azure services and supports hundreds of third-party data connectors, providing a unified view of security across multi-cloud and hybrid environments.
A financial services company deploys Microsoft Sentinel to monitor their multi-cloud environment. When an employee's credentials are used to access Azure resources from an unusual location, then immediately attempt to download data from an S3 bucket via a compromised AWS access key, Sentinel correlates these events across both clouds, identifies it as a coordinated attack, automatically disables the compromised accounts, isolates affected resources, and creates a detailed incident report — all within 90 seconds of the initial suspicious activity.
Microsoft Sentinel is a cloud-native SIEM/SOAR. No single non-Azure service maps 1:1 across other clouds; equivalents are typically a combination of (1) threat detection (e.g., GuardDuty/Cloud Guard), (2) posture/alert aggregation (e.g., Security Hub/SCC), and (3) centralized log storage/search and SIEM analytics (e.g., Security Lake/Chronicle/Logging Analytics) plus automation/orchestration.