Microsoft Sentinel
Microsoft's cloud-native SIEM and SOAR platform with AI Security Copilot, ML threat detection, and automated response.
What it does
Microsoft Sentinel is a cloud-native SIEM and security orchestration, automation, and response (SOAR) platform built on Azure - collecting security data from across an organization's entire digital estate and applying AI to detect threats, investigate incidents, and automate response. AI capabilities include ML anomaly detection that identifies unusual behavior patterns across users, devices, and applications, AI Security Copilot integration that provides natural language threat investigation, automated threat hunting that proactively searches for threat indicators, intelligent incident correlation that groups related alerts from different sources, KQL-assisted query generation for security investigations, and SOAR playbook automation that executes response actions when threats are detected.
Why AI-ENHANCED
Microsoft Sentinel is an established cloud-native SIEM that has meaningfully integrated AI Security Copilot, ML behavioral analytics, and intelligent incident correlation into a mature cloud security operations product.
Best for
Mid-market security teams on Microsoft Azure use Sentinel for cloud-native SIEM - AI threat detection integrated with Microsoft 365 and Azure data and AI Copilot enabling smaller security teams to investigate threats efficiently.
Large enterprises use Microsoft Sentinel for enterprise cloud SIEM - AI-powered correlation across the entire Microsoft security ecosystem and SOAR automation managing high security event volumes.
Limitations
Sentinel's consumption-based pricing scales with log data ingested — organizations with high log volumes must carefully model monthly costs and implement data filtering to avoid significant bills.
Sentinel integrates most natively with Microsoft workloads — organizations with significant AWS, on-premise, or non-Microsoft infrastructure require additional connector configuration and may see less complete security coverage.
Splunk has a larger marketplace of integrations and more established on-premise deployment — organizations with complex hybrid or on-premise SIEM requirements may find Splunk's ecosystem more developed.
Alternatives by segment
| If you need… | Consider instead |
|---|---|
| Enterprise SIEM platform | Splunk |
| AI behavioral SIEM | Exabeam |
| IBM enterprise SIEM | IBM QRadar |
Microsoft Sentinel pricing per GB of data analyzed. Approximately $2.46/GB for pay-as-you-go. Commitment tiers available for predictable pricing. Free 90-day trial on Azure.
