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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.
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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.
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  • 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.
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  • 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.
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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.
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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.
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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).
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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.
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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.
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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.
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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.
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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.
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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.
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The integrated SOC

Unified security operations

Anticipate and stop cyberattacks with an AI-driven defense that unifies prevention, detection, and response, all in Microsoft Defender.
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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.

Limitations with traditional and niche SIEM

Get a complete SIEM with Microsoft Sentinel 

Critical capabilities

Solution complexity and feature gaps
 

  • Tools work in silos

  • Gaps in features

  • Regular, time-intensive updates

  • Inefficient analyst experience

  • High training and specialization requirements

“Splunk is cumbersome and has a huge learning curve. It requires a lot of training to get there.” 
CISO, Infrastructure

Unified SOC experience with critical built-in capabilities

Deliver a smoother SecOps experience with native XDR integrations—no additional add-ons or specialized experts required.
 

  • Built-in AI-powered detection and response 

  • Built-in SOAR, UEBA, and TI

  • Built-in Case Management

“Going with Microsoft Sentinel was a no-brainer to adopt a more holistic approach … rather than continue with that patchwork from different vendors.”
CIO, Retail

Cyberthreat protection

High alert volume and labor-intensive investigations
 

  • Limited detection engineering

  • Lack of automation

  • False positive and alert fatigue

  • Slow mean time to detect (MTTD)/mean time to resolution (MTTR)

  • Low visibility

  • Protracted incidents

  • Lengthy investigations

“Splunk is slower to adopt in terms of adding in features, event queries, event correlation, and understanding how to make sense of all of that data.”
Security Leader, Healthcare

AI-powered, high-fidelity threat detection and investigation

Find cyberthreats in the environment with enhanced AI-powered detection, correlation, and investigation capabilities—significantly reducing false positives and MTTR.

  • Development tools for custom detections

  • Proactive threat hunting with rules enhanced by machine learning (ML)

  • Integrated Security Copilot for AI assistance

  • Robust threat intelligence and alert enrichment

  • Advanced visualization and investigation

  • AI-guided investigation and response

“By ingesting logs and alerts from our security solutions into Microsoft Sentinel, we can correlate threat analysis from multiple sources. This automation saves valuable time to resolve incidents.” 
Security Director, Telecommunications and media

Return on investment (ROI)/total cost of ownership (TCO)

Expensive, hard-to-scale platform operations
 

  • Unpredictable consumption costs

  • Additional modules required

  • On-premises infrastructure or cloud-hosted, but not cloud-native

  • Labor intensive operations

“Splunk ingestion costs are always top of mind because they get very expensive very quickly.”
CISO, Manufacturing

Flexible, cloud-native architecture with lower TCO

Get predictable, cost-efficient security to help reduce TCO.
 

  • Cloud-native scalability

  • Maximum flexibility

  • Efficient data management

  • Simplified operations with tailored, in-product recommendations

“The idea of a cloud-native SIEM like Microsoft Sentinel was attractive ... it offers us flexibility and the cost-effective product we need for our solution portfolio.” Information Security Engineer, Financial services

Time to value

Complex implementation with slow time to value
 

  • Insufficient migration support

  • Limited interoperability with ecosystem

  • Time-consuming custom integration and deployment

  • Lack of pre-built templates, rules, and playbooks

“If you don't have all [Palo Alto] tools, it’s difficult to get other platforms integrated.”
Director of IT Operations, Manufacturing

Rapid onboarding with pre-built solutions

Protect across clouds, platforms, and tools by using robust migration tools, an extensive content catalog, configuration recommendations, and pre-built, curated cyberthreat detection rules.
 

  • Supports more than 350 ready-to-use connectors

  • Codeless connector framework to build and deploy no-code custom connectors

  • Low-friction interoperability across clouds, tools, and platforms

  • Extensive library of 480+ customizable security solutions

“Microsoft Sentinel provides wide data source integration. It can collect data from Microsoft Cloud, AWS, Google Cloud, on-prem infrastructure, and third-party security tools.” Security leader, Technology

Security innovation

Insufficient roadmap vision and execution
 

  • Constrained research and development

  • Inadequate AI expertise and functionality

  • Underdeveloped features

  • Limited TI and security research professionals

“One of the challenges with Splunk is the lack of vision on their roadmap since the acquisition.” 
Security Leader, Banking

Visionary roadmap with AI and machine learning

Stay ahead of emergent cyberthreats through product development that’s focused on rapidly delivering breakthrough advances for the SOC. Microsoft prioritizes security above all else—backed by long-term investments and 10,000+ world-class security experts and engineers.