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---
title: "Three Lines of Defense"
type: concept
tags: [Security, Governance, Risk-Management, Framework]
date: 2026-04-14
---
## Definition
三道防线Three Lines of Defense3LoD是一种企业风险管理框架通过分层职责确保安全控制的有效性。
## First Line of Defense
业务单元:负责在其领域内实施和管理安全控制,是安全的直接责任方。
## Second Line of Defense
集团办公室:负责制定政策、事件响应和网络工具,作为第一道防线的顾问,提供指导和支持。
## Third Line of Defense
审计:确保第一道和第二道防线的合规性,为企业提供保证。
## Key Drivers
- 监管合规Regulatory Compliance
- 集中化平台Centralized Platform
- 云迁移Cloud Migration
- 基线控制Baseline Controls
- 更大的安全响应覆盖范围
## Work Streams Implemented
- 政策审查与整合
- 事件响应参与
- 网络安全风险与控制指标开发
- 网络安全工具审查
- 安全架构标准与模式
## Related Entities
- [[Coyote]] — Head of Enterprise Application Security框架推动者
## Related Concepts
- [[Cloud-Security-Posture-Management]]
- [[Regulatory-Compliance]]
- [[Risk-Management]]
## Related Sources
- [[CTP Topic 52 3 Lines of Defence (3LoD) framework Cloud Security Posture Management (CSPM)]]