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Managed Microsoft Sentinel: 24/7 SIEM Monitoring & Threat Detection

Expert-managed Microsoft Sentinel SIEM service for your Microsoft 365 and Azure environments. We deploy, tune, monitor, and operate Sentinel 24/7, so you get world-class threat detection without hiring Sentinel specialists or drowning in alert noise.

Trusted by organizations across the EU and UK | Microsoft Sentinel Certified Specialists | Average cost reduction: 30-40% through optimized data ingestion

From Deployment to Detection Expertise

Beyond Simple Deployment

Detection Without Context Fails

Microsoft Sentinel surfaces thousands of alerts, but without expert correlation and tuning, critical threats drown in noise. Managed expertise ensures your detections align with your environment.

Setup Is Just the Beginning

Deploying Sentinel is easy; maintaining its efficiency is not. Log ingestion, cost optimization, and analytic rule updates require continuous attention to keep detections accurate and affordable.

Clear Visibility, Actionable Signals

With optimized rules and expert triage, Managed Sentinel delivers a clear picture of your security posture. You see prioritized, context-rich alerts that your team can act on, without the noise or confusion of raw telemetry.
Before
$7940
Average unmanaged monthly cost
After
$4830
Optimized deployment cost
Save up to 40% monthly

Sentinel costs spiral without proper management. Average unmanaged Sentinel deployment monthly costs are very high in data ingestion alone. Our optimized deployments typically run much cheaper monthly. Same visibility, better tuning, 30-40% cost reduction.

"We deployed Sentinel but our team doesn't have time to tune it. The alerts are overwhelming!"

Common refrain from security teams

End-to-End Management, Not Just Monitoring

What Our Managed Sentinel Service Includes

Sentinel Deployment

Architecture, RBAC, workspace config, initial connectors, baseline rules, and cost planning.

Data Connector Optimization

M365 Defender, Entra ID, Azure logs, collect only high-value telemetry to cut cost & noise.

Custom Detection Rules

KQL tuned to your environment and threat model; continuous false-positive reduction.

Playbook Automation

Logic Apps for isolation, account blocks, session revocation, targeted notifications.

24/7 Monitoring & Triage

SOC investigations, context-rich escalations, tuning in flight to keep signals meaningful.

Cost & Reporting

Ingestion governance, tiered retention, query optimisation, monthly reporting & roadmap.

Our managed service integrates with full MDR capabilities, Azure security monitoring, and your M365 security baseline.

The Falconer Optimization Framework

How We Optimize Sentinel for Your Microsoft Environment

Data Source Prioritization

We start by enabling the highest-value Microsoft connectors: Microsoft 365 Defender, Entra ID (Azure AD), Defender for Cloud, and key Azure platform logs, mapped to your tenant and use cases. We collect the signals that matter and suppress the ones that don’t, reducing ingestion cost and noise from day one.

High-signal telemetry Cost control Faster time-to-value

Detection Rule Tuning

Out-of-the-box analytics are a baseline. We tune rules to your naming conventions, Conditional Access policies, identity risks, and typical user/device behaviour. That cuts false positives and surfaces the real incidents, attacks that need immediate action.

Less false positives Tenant-aware analytics Higher precision

KQL Optimization

We optimize your KQL to run efficiently at scale: indexing, summarizing, and using time-bounded queries to improve performance and reduce cost. The result: faster triage, lower compute, and investigations that won’t stall when volume spikes.

Faster queries Lower compute cost Scales with load

Playbook Development

We build Logic Apps playbooks to automate critical containment: device isolation, session revocation, sign-in block, mailbox quarantine, and targeted stakeholder notifications. Automation handles the seconds; analysts handle the judgement.

Rapid containment Logic Apps Human-in-the-loop

Threat Intel Integration

We enrich detections with Microsoft threat intelligence and curated external feeds. ATT&CK-mapped analytics target identity abuse, BEC patterns in Exchange Online, and Azure misconfigurations. This keeps detections current as attacker tradecraft shifts.

ATT&CK-mapped BEC coverage Identity & cloud focus

Workbooks & Reporting

We deliver clear visibility with Sentinel workbooks and monthly reports: detections, response actions, and cost insights, plus a security improvement roadmap. You see risk going down and why.

Operational visibility Monthly reporting Roadmap to improve

Our Sentinel-powered MDR integrates seamlessly with Microsoft 365 security optimization for comprehensive protection.

Cost, Complexity, Coverage

Managed Sentinel vs DIY

DIY Sentinel
Managed Sentinel
Team Requirements
2–3 FTEs + 24/7 cover needed
Team Requirements
Fraction of FTE cost, 24/7 from day one
Time to Value
6–12 months to effectiveness
Time to Value
2–4 weeks to optimized monitoring
Alert Quality
High alert noise / false positives
Alert Quality
~70% noise reduction via tuning
Cost Control
Uncontrolled ingestion costs
Cost Control
30–40% cost reduction

The hard truth: Average time to hire a qualified Sentinel analyst is 6-9 months in the current market. We start monitoring your environment in 2 weeks.

Unified Visibility Across Your Security Stack

M365, Azure, Defender & Beyond

M365

Microsoft 365 Integration

  • Office 365 audit logs for Exchange, SharePoint, OneDrive, and Teams activity
  • Exchange Online protection & anti-phishing events
  • Data access patterns across collaboration tools for insider/privilege risk
Email & Collab Audit Logs Anti-BEC
Azure

Azure Integration

  • Azure Activity Logs to track change and drift
  • Resource health & misconfiguration indicators
  • NSG flow logs, Key Vault access & suspicious control-plane actions
Control Plane Network Posture
Defender Suite

Defender Suite Integration

  • Defender for Endpoint device & server telemetry
  • Defender for Cloud workload posture & attack paths
  • Defender for Identity signals for AD/Entra compromise
Endpoint Cloud Identity
Entra ID

Entra ID (Azure AD)

  • Sign-in & audit logs for authentication patterns
  • Risky user detections & Conditional Access violations
  • Privileged access & role assignment monitoring
Auth CA Policy PIM
3rd-Party

Third-Party Connectors

  • AWS CloudTrail for multi-cloud telemetry
  • Firewall & proxy feeds (Palo Alto, Fortinet, etc.)
  • Additional EDR/XDR signals where required
Multi-Cloud Edge EDR
Unified View

Correlated Threat Picture

  • End-to-end attack chain across email, identity, endpoints & cloud
  • ATT&CK-aligned analytics tuned to your tenant
  • Playbooks for automated containment & guided remediation
ATT&CK Playbooks Containment

The Path from Deployment to Continuous Defense

From Sentinel Deployment to 24/7 SOC Operations

New Sentinel Deployment Path

Starting from scratch with a comprehensive security foundation

Weeks 1-2

Security Assessment

Security assessment, workspace design, and data connector planning. We understand your environment, threat model, and compliance requirements before deploying anything.

Weeks 3-4

Sentinel & Defender Deployment/Optimization

Sentinel deployment, data connector configuration, and baseline detection rules. We establish the foundation using Microsoft best practices and our deployment experience.

Weeks 5-6

Security Hardening

Detection tuning, playbook development, and alert validation. We optimize specifically for your environment, reducing false positives before you see them.

Week 7+

Onboarding

24/7 monitoring begins. Continuous optimization as your environment evolves and new threats emerge.

Fully operational 24/7 SOC

Existing Sentinel Takeover Path

Optimizing and enhancing your current Sentinel deployment

Week 1

Environment Audit & Gap Analysis

Comprehensive review of your existing Sentinel configuration, data connectors, detection rules, and incident response workflows. We identify optimization opportunities and security gaps.

Weeks 2-3

Optimization & Tuning

Fine-tune existing detections, optimize data ingestion costs, enhance analytics rules, and implement missing data connectors. We reduce false positives and improve detection accuracy.

Week 4

Playbook Enhancement & Integration

Deploy automated response playbooks, integrate with existing tools, and establish escalation procedures. Your team maintains visibility while we handle the heavy lifting.

Week 5+

Transition & Handoff

Seamless transition to 24/7 monitoring with knowledge transfer and documentation. Your optimized Sentinel environment now benefits from continuous expert oversight.

Enhanced 24/7 SOC operations

Upgrade Path to MDR

Start with managed Sentinel for SIEM platform management and monitoring. Upgrade to full MDR when you need active threat hunting, incident response, and hands-on threat containment. Many clients follow this natural progression as security maturity grows.

Transparency matters

Fixed monthly cost based on data ingestion volume. Clear SLAs for alert response. Dedicated Sentinel architect assigned to your account. No surprises.

Time to 24/7 Operations
4-6 weeks (new) | 3-4 weeks (takeover)

This service integrates with full MDR capabilities, starts with a Microsoft 365 Security Assessment, and connects to our broader Microsoft Security Operations.

Frequently Asked Questions

Managed Sentinel Service Simplified

What is a managed Sentinel service?
A managed Sentinel service means we deploy, configure, monitor, tune, and operate Microsoft Sentinel SIEM for you, providing 24/7 threat detection and expert alert triage without requiring you to hire dedicated Sentinel analysts or become KQL experts. We handle the complexity so you get the protection.
Why do I need managed Sentinel if I already have Sentinel?
Sentinel requires expert configuration, custom detection rules, data connector optimization, continuous alert tuning, and 24/7 monitoring to be effective. Most organizations lack the specialized Sentinel expertise and round-the-clock SOC team needed to maximize the platform’s value. The deployment is only the starting point. Effective security requires ongoing expert management.
What Microsoft security tools does Sentinel integrate with?
Sentinel natively integrates for example with Microsoft 365 Defender, Defender for Endpoint, Defender for Cloud, Entra ID, Azure Activity Logs, Key Vault, and hundreds of third-party data connectors. This provides unified threat visibility across your entire Microsoft estate and connected systems, all correlated in a single security operations platform.
How do you reduce Sentinel costs and alert noise?
We optimize data ingestion by collecting only high-value logs, eliminating redundant data sources, and using tiered retention policies. Detection rules are tuned to reduce false positives by 70% typically. Automated playbooks handle low-severity alerts. Result: 30-40% lower Sentinel costs compared to unmanaged deployments, with better threat detection.
Can you manage Sentinel if we've already deployed it?

Yes. We provide Sentinel health checks, optimization, and takeover services for existing deployments. We audit your configuration, tune detection rules to reduce alert noise, optimize data ingestion to lower costs, fix misconfigurations, and transition to 24/7 managed monitoring. Most takeover projects complete within 3-4 weeks.

What's the difference between managed Sentinel and MDR service?

Managed Sentinel focuses on SIEM platform management: deployment, tuning, monitoring, and alert triage. MDR (Managed Detection & Response) adds proactive threat hunting, hands-on incident response, and active threat containment across your entire Microsoft environment. Many clients start with managed Sentinel and upgrade to full MDR as security needs increase.