Plain English Meaning
Important network facilities or information systems that may seriously affect national security, public interests or people's livelihood if damaged or disrupted.
Usage Note
Often abbreviated as CII after first use; operator status should be based on the applicable identification framework.
Do Not Confuse It With
- A critical business system is not automatically CII.
- CII operator status is not inferred solely from company size.
Common Scenarios
- Essential network services
- Regulated infrastructure sectors
- CII-related cross-border transfer analysis
Latest Developments
- The concept remains connected to the Cybersecurity Law and the CII Security Protection Regulation.
Official Sources
Last verified: 2026-07-30
Related References
- Related laws
- CSL
- Related standards
- GB/T 22239
- Related articles
- Cybersecurity Law and CII Security Protection Regulation