Organizations implementing ISO 27001 for the first time often struggle to find the right starting point. Drawing on our experience advising Thai organizations of various sizes, here are the essential preparation steps.
Step One: Define the Scope Clearly
Before anything else, the organization must clearly define the scope of its information security management system — across business units, physical locations, and relevant information systems. Too narrow a scope can leave the certificate short of business needs; too broad a scope creates unnecessary workload.
Step Two: Build an Information Asset Register
Identify all significant information assets — data, systems, hardware, and software — along with an owner for each, forming the essential foundation for the risk assessment that follows.
Step Three: Conduct Risk Assessment and Build the SoA
Use the asset register to assess risks to confidentiality, integrity, and availability, then build a risk treatment plan and Statement of Applicability, as described in our earlier article.
Step Four: Build Awareness Across the Organization
Even the best information security system fails instantly if staff lack awareness. Organizations should train employees at every level to understand policy and their own responsibilities from the project's very start — not wait until just before the audit to begin.