ISO 27001 Implementation Framework

ISO 27001:2022 Implementation Framework — ISMS Certification Toolkit

Having implemented Information Security Management Systems that passed Stage 1 and Stage 2 certification audits, I built this framework because the distance between buying ISO 27001:2022 from the ISO store and actually achieving certification is typically 12-18 months of work that most organizations underestimate by 60%.

The specific gap: ISO 27001:2022 restructured Annex A from 114 controls across 14 domains to 93 controls across 4 themes (Organizational, People, Physical, Technological), added 11 new controls including threat intelligence (A.5.7), cloud security (A.5.23), and data masking (A.8.11), and requires updated risk assessments and Statements of Applicability.

What You Get

• ISMS Documentation Suite — 25 mandatory documents and records: Information Security Policy, Risk Assessment Methodology, Statement of Applicability (SoA), Risk Treatment Plan, and all required operating procedures. Each document meets Clause 7.5 documented information requirements.
• Risk Assessment Framework — Quantitative and qualitative risk assessment templates aligned with ISO 27005:2022 and NIST SP 800-30. Includes asset inventory templates, threat catalogs, vulnerability identification procedures, and risk scoring matrices calibrated for cloud environments.
• 93 Annex A Control Implementation Guides — For each control: implementation guidance, technical configurations (AWS/Azure/GCP), evidence requirements, and internal audit test procedures. Highlights the 11 new controls in the 2022 revision.
• Internal Audit Program — Audit schedule templates, audit checklists covering all ISMS clauses (4-10) and applicable Annex A controls, nonconformity tracking, and management review agenda templates meeting Clause 9.3 requirements.
• Transition Guide (2013 to 2022) — Control mapping from the old 114-control structure to the new 93-control structure. Gap analysis workbook identifying which new controls need implementation and which existing controls need evidence updates.

Brownfield Implementation

Phase 1 (Months 1-2): Gap analysis against Clauses 4-10 and Annex A. Define ISMS scope, establish information security policy, and assign roles. Phase 2 (Months 3-5): Complete risk assessment, produce Statement of Applicability and Risk Treatment Plan. Phase 3 (Months 6-9): Implement controls per risk treatment plan, deploy documentation, train workforce. Phase 4 (Months 10-12): Internal audit cycle, management review, corrective actions, and Stage 1/Stage 2 audit preparation.

Scope Limitations

Covers ISO 27001:2022 certification preparation for technology organizations. Does not cover ISO 27701 (privacy extension), ISO 27017/27018 (cloud-specific), or sector-specific implementations (healthcare, automotive). Physical security controls include policy templates but not facility design specifications.

Audit Evidence

Produces certification-ready evidence: ISMS scope document, risk assessment results, SoA with justification for inclusions and exclusions, internal audit reports, management review minutes, corrective action records, training records, and control implementation evidence organized by Annex A control reference number for direct auditor consumption during Stage 2 assessment.

Written by Kenny Ogunlowo — Detection Engineer, U.S. Secret Clearance holder. Built and maintained ISO 27001 Information Security Management Systems in enterprise environments.