Summary
ISO 27001 is the leading international standard for information security management systems (ISMS), providing a systematic approach to managing sensitive company information and ensuring its confidentiality, integrity, and availability.
What is ISO 27001?
Published by the International Organization for Standardization (ISO), ISO 27001 defines requirements for establishing, implementing, maintaining, and continually improving an ISMS. The standard takes a risk-based approach: organizations identify information security risks and select appropriate controls from Annex A to address them.
The standard was revised in 2022 (ISO/IEC 27001:2022), restructuring Annex A from 114 to 93 controls across four themes: organizational, people, physical, and technological controls. New controls address areas such as threat intelligence, cloud security, and data masking.
Certification is achieved through an accredited third-party audit and must be renewed every three years, with annual surveillance audits. ISO 27001 certification is recognized globally and often required by enterprise customers as a prerequisite for vendor selection.
Why is ISO 27001 relevant?
- Global recognition: Accepted internationally as evidence of mature information security practices
- Risk-based approach: Focuses on identifying and treating actual business risks rather than checkbox compliance
- Regulatory alignment: Controls map to requirements in GDPR, NIS2, HIPAA, and other regulations
- Customer trust: Certification is frequently required by enterprise customers and procurement processes