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title: "Three Lines of Defense"
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type: concept
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tags: [Security, Governance, Risk-Management, Framework]
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date: 2026-04-14
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---
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## Definition
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三道防线(Three Lines of Defense,3LoD)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。
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## First Line of Defense
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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。
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## Second Line of Defense
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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。
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## Third Line of Defense
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审计:确保第一道和第二道防线的合规性,为企业提供保证。
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## Key Drivers
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- 监管合规(Regulatory Compliance)
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- 集中化平台(Centralized Platform)
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- 云迁移(Cloud Migration)
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- 基线控制(Baseline Controls)
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- 更大的安全响应覆盖范围
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## Work Streams Implemented
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- 政策审查与整合
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- 事件响应参与
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- 网络安全风险与控制指标开发
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- 网络安全工具审查
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- 安全架构标准与模式
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## Related Entities
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- [[Coyote]] — Head of Enterprise Application Security,框架推动者
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## Related Concepts
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- [[Cloud-Security-Posture-Management]]
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- [[Regulatory-Compliance]]
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- [[Risk-Management]]
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## Related Sources
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- [[CTP Topic 52 3 Lines of Defence (3LoD) framework Cloud Security Posture Management (CSPM)]]
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