China. Cybersecurity. Law

CSLCybersecurity Law of the People's Republic of China (网络安全法)

In force

§1Summary

Synopsis

China's first comprehensive cyber law, requiring network operators to follow the Multi-Level Protection Scheme, protect user information and support real-name registration. Operators of critical information infrastructure must store personal information and important data in China and pass a security assessment before exporting it.

Key themes
  • MLPS
  • network operator duties
  • CII
  • data localisation
  • real-name registration
  • incident response
  • PI protection
Unique features

Introduced CII localisation and the MLPS grading regime that underpins later data laws.

SaaS relevance

Any SaaS operating networks or services in China is a 'network operator' and must meet MLPS, logging and incident-reporting duties.

§2Obligations

Extraterritorial
Limited
Breach notification
Remedy and inform users; report to competent authorities
DPO
No
Cross-border transfers
CII localisation + security assessment
Maximum penalty
As amended from 2026: up to RMB 10m for extremely grave consequences

§3Dates

Key dates
  • Adopted
  • In force
  • First amendment adopted 2025-10-28, in force 2026-01-01 (see cn-csl-amendment-2025)

§4Text and authority

Text
Authority
Cyberspace Administration of China (CAC)

§5Where it applies

Domestic law of
China

§6Sources and verification

Sources consulted
Verification

High confidence.