Defense-in-Depth Architecture Flow

flowchart TD subgraph A [Identity & Access Governance] A1[Microsoft Entra ID] --> A2[Conditional Access Policies] A2 --> A3[Privileged Identity Management] A3 --> A4[Identity Protection] A4 --> A5[Zero Trust Enforcement] end subgraph B [Data Security & Compliance] B1[Microsoft Purview] --> B2[Information Protection] B2 --> B3[Data Loss Prevention] B3 --> B4[Insider Risk Management] B4 --> B5[Compliance Manager] end subgraph C [Core Security Operations] C1[Microsoft Sentinel] --> C2[Defender XDR Suite] C2 --> C3[Security Copilot] C3 --> C4[KQL & Threat Hunting] C4 --> C5[Automated Response] end subgraph D [Cloud Security & DevSecOps] D1[Defender for Cloud] --> D2[Cloud Security Posture Mgmt] D2 --> D3[Cloud Workload Protection] D3 --> D4[Infrastructure as Code Security] D4 --> D5[Container Security] end subgraph E [Endpoint & Network Security] E1[Defender for Endpoint] --> E2[Attack Surface Reduction] E2 --> E3[Network Security Groups] E3 --> E4[Azure Firewall] E4 --> E5[Web Application Firewall] end subgraph F [Automation & AI Integration] F1[Logic Apps] --> F2[Automation Runbooks] F2 --> F3[PowerShell/Python Scripting] F3 --> F4[Security Orchestration] F4 --> F5[AI-Powered Analytics] end A --> B B --> C C --> D D --> E E --> F A1 -.-> C2 B2 -.-> C1 C5 -.-> F2 D5 -.-> E1 E5 -.-> C4 classDef identity fill:#8661c5,color:white,stroke:#6640a5 classDef data fill:#e81123,color:white,stroke:#c50f1f classDef operations fill:#0078d4,color:white,stroke:#106ebe classDef cloud fill:#0099bc,color:white,stroke:#00819d classDef endpoint fill:#107c10,color:white,stroke:#0e6c0e classDef automation fill:#ff8c00,color:white,stroke:#e67e00 class A1,A2,A3,A4,A5 identity class B1,B2,B3,B4,B5 data class C1,C2,C3,C4,C5 operations class D1,D2,D3,D4,D5 cloud class E1,E2,E3,E4,E5 endpoint class F1,F2,F3,F4,F5 automation

Identity & Access

Data Security

Security Operations

Cloud Security

Endpoint & Network

Automation & AI

Security Information Flow

flowchart LR subgraph G [Threat Detection & Response Flow] direction TB G1[External Threats] --> G2[Identity Layer
Entra ID Protection] G2 --> G3[Data Layer
Purview DLP] G3 --> G4[Operations Layer
Sentinel SIEM/SOAR] G4 --> G5[Cloud Layer
Defender for Cloud] G5 --> G6[Endpoint Layer
Defender XDR] G6 --> G7[Automation Layer
Auto-remediation] end H[Security Copilot
AI Analysis] -.-> G4 G4 -.-> I[Compliance Reporting
Compliance Manager] G7 -.-> J[Continuous Improvement
Secure Score Optimization] classDef threat fill:#d83b01,color:white,stroke:#b83200 classDef ai fill:#9c27b0,color:white,stroke:#7b1fa2 classDef compliance fill:#ff9800,color:white,stroke:#e68900 classDef improvement fill:#4caf50,color:white,stroke:#3d8b40 class G1 threat class H ai class I compliance class J improvement class G2 identity class G3 data class G4 operations class G5 cloud class G6 endpoint class G7 automation

Key Architecture Principles

Zero Trust Foundation

Verify explicitly, use least privilege access, and assume breach across all security layers.

Integrated Ecosystem

All components share signals and automate responses through native integrations.

AI-Enhanced Operations

Security Copilot provides AI-assisted hunting, investigation, and response capabilities.

Unified Compliance

Centralized compliance management with continuous monitoring and automated reporting.

Microsoft Defense-in-Depth Security Architecture

A comprehensive, layered security approach integrating Microsoft's complete security ecosystem for enterprise protection

Identity & Access Governance

Secure access control with Zero Trust principles

Microsoft Entra ID

Conditional Access, PIM, Identity Governance

Zero Trust Enforcement

MFA, RBAC, ZTNA, SASE/SSE

Privileged Access

Just-In-Time, entitlement management

Data Security & Compliance

Protect sensitive information and ensure regulatory compliance

Microsoft Purview

DLP, Information Protection, Insider Risk

Compliance Manager

NIST, ISO, CIS, GDPR framework mapping

Policy-as-Code

Continuous compliance & audit reporting

Core Security Operations

Unified security operations with SIEM/SOAR and XDR capabilities

Microsoft Sentinel

SIEM/SOAR, Analytics, Workbooks, Playbooks

Defender XDR Suite

Endpoint, Identity, Cloud Apps, Vulnerability

Security Copilot

AI-assisted hunting & response

KQL & Hunting

Advanced query language & detection engineering

Cloud Security & DevSecOps

Secure cloud infrastructure and development pipelines

Defender for Cloud

CSPM, CNAPP, Workload Protection

IaC Security

Terraform & Bicep scanning, secure pipelines

Platform Controls

Azure Policy, Key Vault, NSG, Firewall

Endpoint & Network Security

Protect devices and network infrastructure

Defender for Endpoint

EDR, Attack Surface Reduction

Network Protection

Firewall, NSG, Application Gateway

Server Security

AKS hardening, Container security

Automation & AI Integration

Orchestrate security responses and leverage AI capabilities

Orchestration

Logic Apps, Automation Runbooks, Scripting

Cross-Platform

AWS integrations, API protection, ML detection