ISO/IEC 27001 is an international standard that sets requirements for establishing, implementing, maintaining, and continually improving an Information Security Management System (ISMS). It provides a structured framework to help organizations manage the confidentiality, integrity, and availability of information.
The standard requires organizations to:
- Identify information security risks in a systematic way
- Assess the likelihood and impact of those risks
- Select and implement appropriate security controls
- Define clear roles, responsibilities, and governance for security
- Monitor, review, and improve security measures over time
ISO 27001 is risk-based and technology-neutral. It does not guarantee that security incidents will never occur, but it helps reduce the likelihood and impact of incidents by ensuring that risks are understood and managed in a consistent, documented manner.
Organizations can choose to undergo an independent audit by an accredited certification body to demonstrate conformity with ISO 27001. Certification can provide external assurance, but the effectiveness of security still depends on how well the standard is applied, maintained, and supported by management and staff.