Microsoft Security Stack Architecture

Holistic Implementation Blueprint with Zero Trust Framework

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LAYER 1: Foundation & Posture Management
Azure Tenant & Management Groups
Structural foundation for governance and policy organization
Microsoft Entra ID
Primary identity and access control plane
Defender for Cloud
CSPM/CWPP/CNAPP for cloud security posture
Purview Compliance
Data security and compliance governance
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LAYER 2: Identity & Access - Zero Trust
Conditional Access
Policy decision engine for access control
Entra ID Protection
User risk assessment and identity protection
Privileged Identity Management
Just-In-Time privileged access management
Defender for Identity
Active Directory threat protection
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LAYER 3: Prevent & Protect - Workloads
Defender for Endpoint
EDR for endpoints and servers
Defender for Office 365
Email and collaboration security
Defender for Cloud Apps
CASB for SaaS application security
Purview Information Protection
Data classification and loss prevention
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LAYER 4: Detect & Respond - XDR & SIEM
Microsoft Defender XDR
Unified XDR incident management
Microsoft Sentinel
Cloud-native SIEM/SOAR platform
Log Analytics
Centralized log data repository
Logic Apps
Security automation and orchestration
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LAYER 5: Intelligence & Assurance - AI
Security Copilot
AI-powered security analyst assistant
Threat Intelligence
IOCs and threat context enrichment
Compliance Manager
Regulatory compliance tracking
Secure Score
Security posture benchmarking
50%
Reduction in Mean Time to Respond
60%
Reduction in Configuration Drift
75%
True Positive Threat Detection Rate
85%
Microsoft Secure Score Achievement

Security Integration Flow

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Foundation
🟢
Identity
🟠
Protect
🟣
Detect
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Intelligence
Threat Detection Performance
Security Control Coverage
Incident Response Timeline
Compliance Status

Implementation Roadmap

Phase 1: Foundation & Identity (Weeks 1-4)

Establish Entra ID, Conditional Access, and basic governance

Phase 2: Endpoint Protection (Weeks 5-8)

Deploy Defender for Endpoint and implement device compliance

Phase 3: XDR Integration (Weeks 9-12)

Enable Defender XDR suite and integrate data sources

Phase 4: SIEM & Automation (Weeks 13-16)

Deploy Sentinel and build SOAR playbooks

Phase 5: AI & Optimization (Weeks 17-20)

Implement Security Copilot and continuous improvement