ISMS Audit Expert Internal and external ISMS audit management for ISO 27001 compliance verification, security control assessment, and certification support. Table of Contents Audit Program Management Audit Execution Control Assessment Finding Management Certification Support Tools References Audit Program Management Risk-Based Audit Schedule Risk Level Audit Frequency Examples Critical Quarterly Privileged access, vulnerability management, logging High Semi-annual Access control, incident response, encryption Medium Annual Policies, awareness training, physical security Low Annual Documentation, asset inventory Annual Audit Planning Workflow Review previous audit findings and risk assessment results Identify high-risk controls and recent security incidents Determine audit scope based on ISMS boundaries Assign auditors ensuring independence from audited areas Create audit schedule with resource allocation Obtain management approval for audit plan Validation: Audit plan covers all Annex A controls within certification cycle Auditor Competency Requirements ISO 27001 Lead Auditor certification (preferred) No operational responsibility for audited processes Understanding of technical security controls Knowledge of applicable regulations (GDPR, HIPAA) Audit Execution Pre-Audit Preparation Review ISMS documentation (policies, SoA, risk assessment) Analyze previous audit reports and open findings Prepare audit plan with interview schedule Notify auditees of audit scope and timing Prepare checklists for controls in scope Validation: All documentation received and reviewed before opening meeting Audit Conduct Steps Opening Meeting Confirm audit scope and objectives Introduce audit team and methodology Agree on communication channels and logistics Evidence Collection Interview control owners and operators Review documentation and records Observe processes in operation Inspect technical configurations Control Verification Test control design (does it address the risk?) Test control operation (is it working as intended?) Sample transactions and records Document all evidence collected Closing Meeting Present preliminary findings Clarify any factual inaccuracies Agree on finding classification Confirm corrective action timelines Validation: All controls in scope assessed with documented evidence Evidence Collection Methods Method Use Case Example Inquiry Process understanding Interview Security Manager about incident response Observation Operational verification Watch visitor sign-in process Inspection Documentation review Check access approval records Re-performance Control testing Attempt login with weak password Control Assessment ISO 27002 Control Categories Organizational Controls (A.5): Information security policies Roles and responsibilities Segregation of duties Contact with authorities Threat intelligence Information security in projects People Controls (A.6): Screening and background checks Employment terms and conditions Security awareness and training Disciplinary process Remote working security Physical Controls (A.7): Physical security perimeters Physical entry controls Securing offices and facilities Physical security monitoring Equipment protection Technological Controls (A.8): User endpoint devices Privileged access rights Access restriction Secure authentication Malware protection Vulnerability management Backup and recovery Logging and monitoring Network security Cryptography Control Testing Approach Identify control objective from ISO 27002 Determine testing method (inquiry, observation, inspection, re-performance) Define sample size based on population and risk Execute test and document results Evaluate control effectiveness Validation: Evidence supports conclusion about control status Finding Management Finding Classification Severity Definition Response Time Major Nonconformity Control failure creating significant risk 30 days Minor Nonconformity Isolated deviation with limited impact 90 days Observation Improvement opportunity Next audit cycle Finding Documentation Template Finding ID: ISMS-[YEAR]-[NUMBER] Control Reference: A.X.X - [Control Name] Severity: [Major/Minor/Observation] Evidence: - [Specific evidence observed] - [Records reviewed] - [Interview statements] Risk Impact: - [Potential consequences if not addressed] Root Cause: - [Why the nonconformity occurred] Recommendation: - [Specific corrective action steps] Corrective Action Workflow Auditee acknowledges finding and severity Root cause analysis completed within 10 days Corrective action plan submitted with target dates Actions implemented by responsible parties Auditor verifies effectiveness of corrections Finding closed with evidence of resolution Validation: Root cause addressed, recurrence prevented Certification Support Stage 1 Audit Preparation Ensure documentation is complete: ISMS scope statement Information security policy (management signed) Statement of Applicability Risk assessment methodology and results Risk treatment plan Internal audit results (past 12 months) Management review minutes Stage 2 Audit Preparation Verify operational readiness: All Stage 1 findings addressed ISMS operational for minimum 3 months Evidence of control implementation Security awareness training records Incident response evidence (if applicable) Access review documentation Surveillance Audit Cycle Period Focus Year 1, Q2 High-risk controls, Stage 2 findings follow-up Year 1, Q4 Continual improvement, control sample Year 2, Q2 Full surveillance Year 2, Q4 Re-certification preparation Validation: No major nonconformities at surveillance audits. Tools scripts/ Script Purpose Usage isms_audit_scheduler.py Generate risk-based audit plans python scripts/isms_audit_scheduler.py --year 2025 --format markdown Audit Planning Example

Generate annual audit plan

python scripts/isms_audit_scheduler.py --year 2025 --output audit_plan.json

With custom control risk ratings

python scripts/isms_audit_scheduler.py --controls controls.csv --format markdown References File Content iso27001-audit-methodology.md Audit program structure, pre-audit phase, certification support security-control-testing.md Technical verification procedures for ISO 27002 controls cloud-security-audit.md Cloud provider assessment, configuration security, IAM review Audit Performance Metrics KPI Target Measurement Audit plan completion 100% Audits completed vs. planned Finding closure rate

90% within SLA Closed on time vs. total Major nonconformities 0 at certification Count per certification cycle Audit effectiveness Incidents prevented Security improvements implemented Compliance Framework Integration Framework ISMS Audit Relevance GDPR A.5.34 Privacy, A.8.10 Information deletion HIPAA Access controls, audit logging, encryption PCI DSS Network security, access control, monitoring SOC 2 Trust Services Criteria mapped to ISO 27002