ISO 27001 is an internationally recognised standard for information security management systems (ISMS), offering a systematic approach to managing security risks and protecting sensitive information effectively. Within this framework, the Statement of Applicability (SoA) plays a vital and mandatory role by defining chosen security controls and their significance, aiding organisations in establishing a robust security framework.
💠 The purpose and requirements of the SoA are customised to an organisation’s information security controls according to their specific context, business operations, regulatory requirements, and risk assessment results. The control selection ensures that each security measure is relevant and effective.
💠 The SoA links the chosen security controls and identified risks, ensuring that security efforts mitigate the most critical threats and vulnerabilities. For each identified control, there must be a justification for each inclusion. This justification should explain why the control is relevant to the organisation’s information security objectives, risk landscape, and operational environment.
💠 The SoA must include a statement for each identified control, indicating whether it is applicable, not applicable, or if there are any exclusions. If a control is applicable, the SoA should explain how it was implemented within the organisation.
The SoA is not a one-time or a compliance document; it is used for managing information security and guides auditors or regulatory bodies when assessing information security practices. Additionally, the SoA should evolve with an organisation’s changing needs, risks, and security landscape. Regular reviews and updates promote a culture of continual improvement in information security.