Security

MICROSOFT SECURITY OPERATING MODEL

From identity control to data-aware security operations

Security architecture becomes practical when Entra ID, Conditional Access, Intune, Defender, Purview, DLP and audit evidence operate as one measurable control system.

01Access

02Device

03Data

04Evidence

This Security section organizes Microsoft security architecture, Zero Trust controls and compliance-ready delivery patterns for enterprise Microsoft environments.

The guidance is shaped around field scenarios such as regulated SaaS access, Microsoft 365 security review, Exchange Online protection, endpoint onboarding, Purview readiness, DLP design and Copilot data protection.

ACCESSIdentity and Conditional AccessStart with Entra ID, MFA, device trust, guest access and policy exception control.THREATDefender XDR OperationsConnect endpoint, email, identity and incident response into a measurable security operation.DATAPurview Information BarriersDesign segment-based collaboration boundaries for Teams, SharePoint and OneDrive.

Visual Security Control Map

Control spineZero Trust to Copilot readiness

01Access controlEntra ID, MFA, Conditional Access, guest access and privileged role review.

02Device trustIntune compliance, Defender onboarding and managed endpoint posture.

03Data protectionPurview labels, DLP, retention, audit and sensitive content boundaries.

04Evidence and Copilot readinessExceptions, approvals, review cadence and permission cleanup before AI rollout.

한국어 요약

Microsoft Security는 Entra ID, Conditional Access, Intune, Defender, Purview, DLP, Audit, Compliance 기능을 하나의 security operating model로 연결할 때 효과가 커집니다.

이 섹션은 Microsoft 365 security assessment, Zero Trust architecture, Conditional Access policy, Defender XDR, Defender for Endpoint, Defender for Office 365, Purview information protection, DLP, Insider Risk, Copilot data protection을 실무 관점에서 정리합니다.

Enterprise security 프로젝트에서는 기술 설정만큼 approval process, exception management, administrator role, audit evidence, user impact가 중요합니다. 특히 금융, SaaS, 제조, 유통, 글로벌 조직처럼 규제와 운영 안정성이 중요한 환경에서는 security policy를 단계적으로 적용해야 합니다.

Security Domains

Domain	Microsoft Capabilities	Consulting Focus
Identity security	Entra ID, MFA, Conditional Access	verify users, devices, locations and risk before access
Endpoint security	Intune, Defender for Endpoint	compliance, onboarding, threat protection and device posture
Messaging security	Exchange Online, Defender for Office 365	phishing protection, mail flow, quarantine and safe collaboration
Data protection	Purview, sensitivity labels, DLP	classification, sharing control and Copilot data readiness
Compliance	audit, retention, insider risk, compliance manager	evidence, policy ownership and operating procedure
SaaS access	Global Secure Access, network exception model	controlled access for regulated or separated networks
Information barriers	Purview Information Barriers, Teams, SharePoint, OneDrive	segment-based collaboration restriction and evidence-ready validation

Typical Field Scenarios

• Microsoft 365 security baseline for new or expanded adoption
• financial services SaaS access readiness in a controlled network
• Exchange Online security review before or after migration
• Defender and Intune onboarding for endpoint compliance
• Purview and DLP readiness before Copilot rollout
• Information Barrier design for regulated collaboration boundaries
• security committee evidence pack for approval gates

Recommended Reading

• Zero Trust Framework
• Conditional Access
• Defender XDR
• Defender for Office 365
• Purview
• Microsoft Purview Information Barriers
• DLP
• Security Modernization Program

Delivery Assets

• security baseline checklist
• Conditional Access policy design
• Defender onboarding plan
• Purview and DLP readiness matrix
• Information Barrier Segment Matrix and validation checklist
• risk register and exception workflow
• executive security review pack

검색 키워드

이 문서는 다음과 같은 검색어와 관련됩니다.

• Microsoft 365 security
• Microsoft Security Architecture
• Zero Trust architecture
• Entra ID Conditional Access
• Conditional Access policy
• Microsoft Defender XDR
• Defender for Endpoint deployment
• Defender for Office 365
• Microsoft Purview information protection
• Microsoft Purview Information Barriers
• Teams Information Barriers
• SharePoint OneDrive Information Barriers
• DLP policy design
• Copilot data protection

컨설팅 활용 사례

이 가이드는 다음과 같은 컨설팅 상황에서 활용할 수 있습니다.

• Microsoft 365 security assessment
• CISO 보고용 security baseline 작성
• Conditional Access policy 설계 및 exception management
• Defender/Purview 기반 security modernization
• Copilot 도입 전 data security review
• 금융/제조/SaaS 환경의 audit-ready security design

Contact / Asset Request

For security baseline workbooks, control matrices, exception registers, executive security reports or operations handover templates, use Contact and Asset Request.