CSL (Cyber Security Law of China)
China's regulation for network security and data localization
ISO 27701
International standard for privacy information management systems.
Quick Verdict
CSL mandates network security and data localization for China operations, enforcing compliance via fines up to 5% revenue. ISO 27701 provides voluntary PIMS certification for global PII governance. Companies adopt CSL for legal survival in China; ISO 27701 for privacy trust and market differentiation.
CSL (Cyber Security Law of China)
Cybersecurity Law of the People's Republic of China
Key Features
- Mandates data localization for CII and important data
- Requires real-time network security monitoring and testing
- Imposes executive-level cybersecurity governance responsibilities
- Enforces 24-hour incident reporting to authorities
- Applies to foreign enterprises serving Chinese users
ISO 27701
ISO/IEC 27701:2025 Privacy Information Management
Key Features
- PIMS extending ISO 27001 for privacy governance
- Role-specific controls for PII controllers/processors
- Annex A/B privacy controls with GDPR mappings
- Risk-based PDCA cycle and continual improvement
- 3-year certification with annual surveillance audits
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
CSL (Cyber Security Law of China) Details
What It Is
Enacted on June 1, 2017, the Cybersecurity Law of the People’s Republic of China (CSL) is a nationwide statutory regulation establishing baseline cybersecurity requirements for network operators, Critical Information Infrastructure (CII) operators, and data processors in China. It governs information systems security via a risk-based approach distilled into three pillars: network security, data localization, and governance.
Key Components
- **Three PillarsNetwork security (safeguards, monitoring); Data localization & personal information protection (local storage, cross-border assessments); Cybersecurity governance (executive duties, incident reporting).
- Comprises 69 articles targeting broad entities like cloud platforms and foreign services.
- Enforced through mandatory compliance, security evaluations, and MIIT oversight; no formal certification but requires government-approved assessments.
Why Organizations Use It
- Mandatory to avoid fines up to 5% annual revenue, service shutdowns, and legal risks.
- Builds trust with Chinese consumers and partners, enhances operational efficiency via modern architectures like zero-trust.
- Drives innovation through local R&D centers and regulatory sandboxes.
- Mitigates data breach and reputational risks in China's ecosystem.
Implementation Overview
- **Phased frameworkGap analysis, technical redesign (data centers, SIEM), governance setup, testing/certification.
- Applies to all touching Chinese data/users, regardless of location.
- Demands ongoing monitoring, annual reports, and adaptation to intersecting laws like PIPL/DSL.
ISO 27701 Details
What It Is
ISO/IEC 27701:2025 is an international standard providing requirements and guidance for a Privacy Information Management System (PIMS). It extends ISO/IEC 27001 security management with privacy controls for PII controllers and processors, using a risk-based, PDCA (Plan-Do-Check-Act) approach to manage privacy risks.
Key Components
- Clauses 4–10 for management system (context, leadership, planning, etc.)
- Annex A (controller controls: consent, DSARs, transparency)
- Annex B (processor controls: contracts, sub-processors)
- Mappings to GDPR (Annex D), ISO 27002
- 93 privacy controls total, plus certification via accredited bodies
Why Organizations Use It
- Demonstrates accountability for GDPR, POPIA, etc.
- Reduces privacy risks, enhances trust
- Procurement advantage, regulatory evidence
- Integrates with ISMS for efficiency
Implementation Overview
- Gap analysis, risk assessment, controls via SoA
- Phased: scope, design, operate, audit
- All sizes/industries processing PII; 3-year certification with surveillance audits (approx. 178 words)
Key Differences
| Aspect | CSL (Cyber Security Law of China) | ISO 27701 |
|---|---|---|
| Scope | Privacy Information Management System (PIMS) for PII processing | |
| Industry | Any organization processing PII globally | |
| Nature | Voluntary international certification standard | |
| Testing | Internal audits, third-party certification audits | |
| Penalties | Loss of certification, no legal penalties |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about CSL (Cyber Security Law of China) and ISO 27701
CSL (Cyber Security Law of China) FAQ
ISO 27701 FAQ
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