How to Set Up ISO 27001 Controls
ISO 27001 Annex A contains 93 security controls across categories like access management, asset security, cryptography, and more. These controls help you structure and defend your information security program.
🧩 Step 1: Define Your ISMS Scope
Define what your Information Security Management System (ISMS) will cover — including systems, business units, and locations. A clear scope ensures that controls are applied effectively and auditors know what to evaluate.
🔍 Step 2: Conduct a Risk Assessment
Use a structured method like ISO 27005 to identify threats and vulnerabilities. Score risks based on their likelihood and impact, then prioritize controls accordingly. This helps you apply controls based on business relevance, not just checklists.
📄 Step 3: Create a Statement of Applicability (SoA)
For each Annex A control, document whether it is:
- Applicable or not
- Implemented or planned
- Justified (why included or excluded)
The SoA is a critical document for audits and ongoing monitoring.
✅ Step 4: Implement and Monitor Controls
Deploy the selected controls technically and procedurally. Common examples include:
- Access restrictions and role-based permissions
- Asset classification and inventory
- Incident response plans and backup schedules
Monitor their effectiveness through regular internal audits and continual improvement cycles.
💡 Tip:
Your implementation doesn’t need to cover every control — only those relevant to your scope and risk landscape. That’s the value of a risk-driven approach.
Looking for a prebuilt SoA template? Check the Downloads section.