Which security framework is defined by the ISO/IEC 27001 standard?

The ISO/IEC 27001 standard specifically outlines the requirements for establishing, implementing, maintaining, and continuously improving an Information Security Management System (ISMS). This framework emphasizes a systematic approach to managing sensitive company information, ensuring its security through risk management and compliance processes.

By adhering to the ISO/IEC 27001 guidelines, organizations can effectively manage their data security risks, ensuring confidentiality, integrity, and availability of information. The framework also provides a structured way to identify, assess, and mitigate risks associated with information security, making it a comprehensive foundation for developing and maintaining an ISMS within any organization.

In contrast, the other options address different aspects of security but do not encapsulate the specific scope covered by the ISO/IEC 27001 standard. The network security model typically pertains to securing network infrastructure, risk management frameworks focus on identifying and managing risks rather than the overarching management of security systems, and incident response plans are specialized protocols for addressing security incidents rather than a complete management system for ongoing information security practices.