What does ISO/IEC 27001 cover?
ISO/IEC 27001 establishes an information security management system. Risk assessment drives treatment decisions and the selection of controls. The scope and Statement of Applicability help explain what the system covers and why controls are included or excluded.
Who it is for
Organizations protecting information across people, technology, facilities and suppliers.
Key areas to understand
Start with these areas. Identify which requirements apply to your activities and who is responsible for them.
- 1Define the information security scope and assess risks.
- 2Select controls and maintain a justified Statement of Applicability.
- 3Monitor control performance and learn from incidents.
Evidence to prepare
This list is a starting point. Check the standard for all required documents. For each item, record who is responsible, the activity or site it relates to, and a recent example showing how it works.
- Risk assessment and treatment plan
- Statement of Applicability
- Access reviews and account removal records
- Supplier security assessments
- Incident records and internal audit follow-up
Keep records that explain what was checked, which requirement was used and who checked it. Include any action taken when a requirement was not met. Link each record to the work it supports.
An internal audit example
Suggested checks from 4Auditee
Select a person who recently left the organization. Trace the departure notification to account removal across the systems they used, including supplier-managed access. Compare timestamps with the organization’s own policy and check any exception was authorized and resolved.
Choose a sample that suits your activities and risks. If you find a gap, record the requirement, the evidence and what was missing. Check more examples if the first results suggest a wider problem.
A common problem to check
An inventory of security tools is not evidence that controls operate effectively. Sample completed actions and unresolved exceptions.
Prepare for assessment
The assessment type for this guide is management-system certification. Confirm the requirements, what will be assessed and how the assessment will work with the responsible body or customer. These steps help you prepare. You must also follow the scheme’s official rules.
- Define what is covered. List the products, services, activities and sites. Record the standard edition, additional scheme rules and customer requirements.
- Find what is missing. Compare the requirements with current work. Prioritise gaps by risk. Assign someone responsible and a completion date.
- Keep records of everyday work. Check a sample of actual records and speak with the people involved. Make sure they understand their responsibilities.
- Check the results. Complete internal reviews and audits. Check that corrective actions worked before closing problems.
From one site to many
Make it easy to find who is responsible at each site. Keep company policies separate from records of local work. Link each site’s records to its activities, risks and requirements so you can spot gaps at individual sites.
Sites that share a management system do not automatically qualify for one certificate or assessment. Confirm which sites can be included and how they will be checked with the assessment body.
About this guide and its sources
4Auditee wrote this guide using the public source below. The evidence list, audit example and preparation steps are our suggestions. Read the official standard and scheme rules for the full requirements. This guide does not include the standard’s full text or provide certification.
DNV: ISO/IEC 27001 reference information