AI, agentic, and data platform capabilities are now part of Microsoft Sentinel platform.
CLOUD-NATIVE SIEM
Microsoft Sentinel SIEM
Run a faster, leaner SOC with a cloud-native SIEM built for AI. Detect threats across your entire environment, investigate incidents in minutes, and cut SIEM costs with a built-in data lake, without adding tools or analysts.
Overview
Detect faster, respond in minutes, and lower SIEM costs in Microsoft Defender
- Correlate signals across identities, endpoints, cloud apps, and infrastructure with a cloud-native SIEM that scales from your first connector to enterprise-wide visibility. Catch lateral movement, phishing, and insider threats earlier, before they escalate.
- Resolve incidents faster with cloud-native security orchestration, automation, and response (SOAR); user and entity behavior analytics (UEBA); threat intelligence (TI); and AI-assisted analyst workflows, all unified in the Microsoft Defender experience.
- Ingest data from 400+ connectors, retain voluminous logs in a cost-effective way in the built-in data lake, and set up new detections in days, not months. Lower your SIEM total cost of ownership without sacrificing coverage or compliance.
CAPABILITIES
Explore Microsoft Sentinel SIEM capabilities
Built-in detection, investigation, response, and cost optimization — without bolting on extra tools.
Industry-leading SIEM
Detect threats faster across multi-cloud, multiplatform environments with a cloud-native SIEM that unifies AI-driven detection, SOAR, UEBA, and TI — reducing alert noise so analysts focus on what matters.
Built-in data lake for cost-effective SIEM storage
Store and query years of security data cost-effectively in the Microsoft Sentinel data lake — keep logs available for hunting, compliance, and AI-powered detection while controlling your SIEM bill.
Built-in security orchestration, automation, and response (SOAR)
Resolve incidents fasters with built-in orchestration, automation, and response. Out-of-the-box playbooks and codeless automation cut manual triage and mean time to respond (MTTR).
Built-in user and entity behavior analytics (UEBA)
Catch compromised accounts and insider risk with behavior analytics that baseline normal activity and flag what rule-based detection misses.
Native XDR integration
Empower security leaders with native extended detection and response (XDR) integration, delivering unified visibility and control across SIEM and XDR to accelerate cyberthreat detection, streamline investigation, and drive operational efficiency at scale.
Enterprise-wide visibility
Get full visibility across multi-cloud and multi-platform environments with 400+ native connectors and a no-code framework to build custom ones, empowering you to bring data into your SIEM in days, not months.
Dynamic, tailored recommendations
Lower SIEM ingestion costs and analyst labor with AI-driven SOC optimization — automatically tune rules, surface high-fidelity alerts, and point your team to the next best action.
Security Copilot for faster incident response
Resolve incidents faster with Security Copilot built into Microsoft Sentinel. It summarizes incidents, drafts Kusto Query Language (KQL) queries, and recommends next steps — reducing mean time to respond by ~30%1 and freeing analysts from repetitive triage.
Cyberthreat intelligence enhanced by third-party feeds
Deliver actionable threat intelligence by unifying Microsoft’s rich repository of threat signals—empowering your SOC to detect, investigate, and respond to cyberthreats faster using enriched context, industry-standard threat feed format support, and AI-driven insights.
SIEM comparison
Why more security leaders are choosing Microsoft Sentinel
Security leaders report that legacy SIEM and niche solutions are falling short. Modernize your SOC with AI-powered innovations from Microsoft Sentinel, a trusted SIEM.
AI-POWERED SIEM MIGRATION EXPERIENCE
Migrate to Microsoft Sentinel. Quickly and with confidence.
Use Microsoft Sentinel’s built-in, AI-assisted SIEM migration tool to convert Splunk and QRadar alerts to native Microsoft Sentinel detections, reducing manual effort and speeding migration to Microsoft Sentinel.
Pricing
Explore plans and pricing
Microsoft Sentinel SIEM
Pay-as-you-go
Microsoft Azure subscription required.
This product is not available in your market.
Get cost-efficient, predictable SIEM pricing based on the data you ingest, store, and consume.. For a limited time, eligible customers can take advantage of the 50 GB commitment-tier promotion.2
Features:
- Pay only for the data you ingest, store, and consume
- Flexible commitment tiers to lower SIEM TCO
- Limited-time 50 GB ingestion promotion
Microsoft Sentinel pricing is designed to optimize security coverage and costs, with flexible options based on the volume of data ingested, stored, and consumed.
Related products
Discover more offerings from Microsoft Security
INDUSTRY RECOGNITION
Microsoft is recognized as a Leader in SIEM platforms
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Microsoft named a Leader in the 2025 Gartner® Magic Quadrant™ for SIEM
Transform your security operations with Microsoft Sentinel, an industry-leading cloud and AI-powered SIEM.3 -
Leader in Emerging AI Security Operations Center (SOC)
Microsoft named an overall leader in KuppingerCole Analyst's 2026 Emerging AI Security Operations Center (SOC) report.4 -
A Leader in the IDC MarketScape: Worldwide SIEM 2026
Microsoft was named a Leader in the IDC MarketScape: Worldwide SIEM 2026 Vendor Assessment.5
Customer stories
Trusted by organizations of all sizes and industries
RESOURCES
Explore more resources
Get key insights on SIEM solutions, Microsoft Sentinel innovations, and other resources.
FAQ
Frequently asked questions
Frequently asked questions
- Microsoft Sentinel is a cloud-native SIEM that helps security teams detect, investigate, and respond to cyberthreats across multi-cloud, multiplatform environments — with built-in AI, automation, and a cost-effective data lake for long-term log retention. It unifies with Microsoft Defender for one-incident workflows.
- Yes — Microsoft Sentinel is a cloud-native SIEM. It runs on Microsoft's broader security platform (Microsoft Security IQ), which powers AI-driven workflows across products like Security Copilot. For platform / data fabric details, see the Microsoft Security IQ page.
- Microsoft Defender is a suite of tools that unifies prevention, detection, and response across endpoints, identities, email, and applications to deliver a consolidated view of threats, adaptive protection against cyberattacks, and streamlined incident response and remediation.
Microsoft Sentinel delivers extended visibility and foundational SecOps tools with built-in SIEM, SOAR, UEBA, and TI to detect, investigate, and respond to cyberthreats efficiently across the entire digital estate.
Both Microsoft Defender and Microsoft Sentinel are fully integrated in the Microsoft Defender portal, delivering unparalleled native detection and automated response with extended visibility, flexibility, and scalability. - No, Microsoft Sentinel is designed to ingest and analyze security data from a wide variety of sources across multicloud, multiplatform environments. Microsoft Sentinel integrates with more than 450 different solutions through connectors supported by Microsoft and third-party partners.
- Microsoft Sentinel uses a built-in data lake for affordable long-term log retention, includes SOAR, UEBA, threat intelligence, and case management, and runs cloud-native, thereby eliminating infrastructure overhead. AI-driven SOC optimization further reduces ingestion costs and analyst time on triage.
- Microsoft Sentinel SIEM migration experience uses AI to convert detection rules from Splunk, QRadar, and other legacy SIEMs into native Sentinel detections, reducing manual effort and shortening migration timelines from quarters to weeks. Pre-built migration playbooks and codeless connectors accelerate onboarding. The first step is analysis-only: it reviews your legacy SIEM exports to identify what maps cleanly vs. needs review, and which data sources/connectors are required for coverage. It does not automatically enable connectors and detections or retire your existing SIEM. Execution starts only when you choose to proceed and align on migration scope and ownership.
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- [1]Microsoft, "Generative AI and Security Operations Center Productivity: Evidence from Live Operations," 2025.
- [2]
The promo can be used with existing or new purchases of Microsoft Sentinel.
The promo may not be combined with other Microsoft Sentinel discounts.
- [3]Gartner and Magic Quadrant are trademarks of Gartner, Inc., and/or its affiliates.
Gartner does not endorse any vendor, product or service depicted in its research publications and does not advise technology users to select only those vendors with the highest ratings or other designation. Gartner research publications consist of the opinions of Gartner’s research organization and should not be construed as statements of fact. Gartner disclaims all warranties, expressed or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose.
Gartner, Magic Quadrant for Security Information and Event Management, Eric Ahlm, Angel Berrios, Andrew Davies, and Darren Livingstone, 8 October 2025. - [4]KuppingerCole Analysts AG Leadership Compass, Emerging AI Security Operations Center (SOC), Matthew Gardiner, April 20, 2026.
- [5]IDC MarketScape: Worldwide SIEM 2026 Vendor Assessment, doc # US54126826, June 2026. ©2026 IDC. Used with permission.
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