4 min

Essential Checklist for ISO 27001 Compliance

Posted by: Ông Nur Kamal Bin Kamari Date: 28 Jul 2023


By implementing an ISO 27001-compliant ISMS, businesses can proactively prepare for potential threats. The ISMS becomes robust with clear guidelines and standards, effectively fulfilling its objectives. An efficient checklist ensures that the information security management system plan encompasses all aspects of the standard, aligning with the organisation's objectives for information security. This comprehensive approach enhances the effectiveness of the ISMS, enabling organisations to address security challenges confidently.


This ISO 27001 Audit checklist listed below aims to assist organisations in the successful implementation of an ISMS as per ISO 27001 standards:

  1. Form an ISO 27001 Internal Team: Before initiating the scoping or establishment of an ISMS, it is crucial to have a prepared and active task force responsible for its successful implementation. Assigning team members streamlines planning and coordination, resulting in an effective process. A clear definition of tasks and responsibilities for each team member and appropriate oversight ensures compliance with the ISO 27001:2022 checklist requirements.
  2. Develop a Roadmap: Successful implementation of a plan requires a proper path. A Plan-Do-Check-Act method should be adopted to identify gaps and challenges to facilitate improvement and remediation. To have financial clarity, a key factor is understanding the costs associated with implementing ISMS and ISO 27001 certification as per the organisation’s size and structure.
  3. Set the Scope and Conduct Inventory of Information Assets: Scoping is essential to prioritise areas and avoid time wastage. Clearly defining the business processes within the ISMS scope and informing stakeholders is crucial at the start of implementation. Once scoping is finalised, it is important to consider all assets where information is stored or processed, including data, hardware, and intangible assets. Assigning responsibilities and classifying each asset with proper inventory accountability simplifies the process.
  4. Execute Risk Assessment: Conducting information security risk assessments to identify risks that may have potential impact to the assets and services. This further helps prioritise processes with a higher scale of threat associated with it. Maintaining this information in a risk register ensures proper documentation and availability of records.
  5. Formulate a Risk Treatment Plan: The organisation needs to formulate a response plan for risks that are above the appetite levels and conduct risk treatment activities by assigning risk mitigation activity owners who complete the activities as per the deadlines and report the results.
  6. Complete the Statement of Applicability Worksheet: As a requirement of ISO 27001, the organisation needs to complete the Statement of Applicability by reviewing all the controls of Annex A of ISO 27001 standard, identifying controls applicable to the risks identified and justifying the inclusion and exclusion of each control in the implementation of ISMS.
  7. Continual Assessment: It is important to build a framework to establish, implement, maintain and continually improve ISMS as and when required.
  8. Document and Record: The organisation must review the ISO 27001 related documentations such as policies, processes, procedures, work instructions and records to support the ISMS implementation in accordance to the business requirements.
  9. Conduct Employee Training: Whenever an ISMS is implemented, or an organisation plans to obtain an ISO 27001 certification, it is important to train the employees to implement the plan smoothly. It is also important to lay down compliance and statutory requirements to be followed by each employee to ensure uniform and transparent implementation of an ISMS.
  10. Conduct Audits: Conduct an internal audit to identify and address potential issues. Follow it up with an external audit to obtain an ISO 27001 certification. The external audit is divided into two stages – Stage one consisting of a review of all the necessary documentation, while Stage 2 focus on reviewing the implementation of controls and their functionality, suitability and its effectiveness.
  11. Address Nonconformities: It is important to ensure that any nonconformity if identified by the auditor, is addressed at the earliest and formal validation must be received regarding the resolution of nonconformities from the ISO 27001 auditor. It is also critical to ensure that all applicable requirements of the standard have been addressed.
  12. Conducting Regular Management Reviews: Senior management reviews should be performed at least once annually to ensure that ISMS remains appropriately implanted and proves effective.
  13. Follow ISO 27001 Audit Schedule: A full ISO 27001 audit cycle lasts for three years, and surveillance audits must be completed in the second and third years to ensure effective implementation and continual improvement of the ISMS plan.
  14. Streamline ISO 27001 with Automation: This can be done by automating data collection processes and continuous monitoring, which can help identify gaps in the ISMS implementation and address them promptly.


ISMS has become essential for every organisation, and compliance with ISO 27001 framework makes it necessary to ensure effective and efficient functioning, free from the fear of any risks, threats, and attacks, in the highly dynamic and tech-enabled modern world.

Learn more about ISO 27001 ISMS here, and our training services:

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