ISO 27001 INTERNAL AUDIT CHECKLIST TEMPLATE An ISO 27001 internal audit is a structured, independent review of an organization’s Information Security Management System (ISMS) to verify whether it conforms to the requirements of ISO/IEC 27001, is properly implemented, and remains effective over time. Unlike external certification audits, an internal audit is conducted by or on behalf of the organization itself. Its purpose is not to certify, but to identify gaps, risks, nonconformities, and opportunities for improvement before they become security incidents or audit failures. 01 ISO 27001 INTERNAL AUDIT An ISO 27001 internal audit typically evaluates: Governance and leadership commitment to information security Risk assessment and risk treatment processes Operational and technical security controls Compliance with documented policies and procedures Monitoring, performance measurement, and continual improvement Key reasons internal audits are essential: Mandatory ISO 27001 Requirement Early Identification of Security Gaps Readiness for External Audits Continuous Improvement of the ISMS Regulatory and Customer Trust This template is designed to be practical and usable for both technical and non-technical teams, including: Information Security & IT Teams conducting ISMS audits Compliance and Risk Managers overseeing ISO 27001 programs Internal Auditors responsible for governance and controls Startups and SMEs preparing for first-time ISO 27001 certification Enterprises managing multi-site or global ISMS audits Consultants and Advisors supporting client audit readiness Note: The templates/guides in our Content Library were created by the SDS Manager Team to help you manage site operations effectively. They are provided as reference tools and should be tailored to match your specific project needs, company policies, and industry standards. SDS Manager does not guarantee that these templates meet legal, regulatory, or contractual requirements. Users are responsible for reviewing and adapting each template to ensure compliance with their operational and legal obligations. ISO 27001 INTERNAL AUDIT CHECKLIST INSTRUCTIONS FOR AUDITORS: For each requirement below, assess compliance by reviewing documentation, interviewing personnel, and observing activities. Mark one option: Add evidence and comments where needed. Compliant (Yes) – Fully meets ISO 27001 requirements Nonconformity (No) – Requirement not met Not Applicable (N/A) – Not relevant; provide justification AUDIT COVER SHEET Yes No Yes No Organization Item Details Audit Date Auditor(s) Area/Process Audited Audit Scope Statement of Applicability Reviewed Risk Assessment Reviewed 02