Table of Contents
What is it ?
It is the cornerstone of information security in Spain and a mandatory legal requirement for any company collaborating with the Public Administration directly or indirectly.
Its official website managed by Spanish National Cryptologic Centre (CCN-CERT) has documentation and online resources as:
- security policies templates,
- standard operating procedures (SOPs) templates,
- security guidelines at different levels and adapted to many technologies.
Serving as a valuable source even if you are implementing another type of cybersecurity regulation.
Essential Resources for the Healthcare Sector
The Spanish National Cryptologic Centre (CCN-CERT) offers specific guides to facilitate compliance in the health field:
Security requirements for E-health Applications (CCN-STIC 857): For solution providers and healthcare software architects and developers.
Specific Compliance Profile for Health (CCN-STIC 891): Practical guide for adherence to the ENS in the provision of healthcare services to patients (Primary and Specialized Care).
Synergies with the European Legal Framework
| ISO 27001 |
The ENS is inspired by the ISO 27000 family of standards, making it easier for companies to integrate both security management frameworks. Mapping between the ISO 27001:2022 Standard and the RD |
| NIS / NIS2 & Cybersecurity Act |
The ENS is the primary security framework in Spain. Its compliance lays the foundation security requirements mandated by the NIS and NIS2 Directive. |
| GDPR | The ENS demands the rigorous technical measures necessary to protect personal data and, thus, is the mechanism for materializing the security obligation established by the GDPR. |
Mandatory Scope
- Public Sector: It is mandatory for all General State Administration, Autonomous Communities, and Local Entities.
- Collaborating Suppliers: It applies to all suppliers and companies that collaborate with the Public Sector.
Critical Focus: The ENS in the Healthcare Sector
Compliance is required from:
- Health Services: Hospitals, health centers and regional health services.
- Healthcare Information Technology Providers: Any company that manages, processes, or maintains patient information (electronic health record systems, appointment platforms, laboratory information systems etc.).
Certification Requirement
Since health data is a special category of data, systems must be categorized as minimum MEDIUM or HIGH security category.
For Medium and High-category systems, the ENS requires the implementation of a Security Management System that must be validated through an external audit, with a minimum frequency of every two years.






