Microsoft Sentinel is a cloud-based security information and event management (SIEM) and security orchestration, automation, and response (SOAR) platform. It collects and analyzes security data from connected services and systems, helping teams investigate alerts and coordinate responses.
Sentinel matters because centralized telemetry and alert workflows can help security operations teams detect suspicious activity and act on it. In managed security operations, a provider may run monitoring and response workflows inside a customer’s Sentinel environment. Organizations should consider what data and decisions they can inspect, who is authorized to take action, and how response activity is approved and audited.