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PECB · Governance, Risk & Privacy · Professional

ISO/IEC 27001 Lead Auditor exam guide

Exam PECB ISO/IEC 27001 Lead Auditor (ISO/IEC 27001:2022)

The PECB ISO/IEC 27001 Lead Auditor certification validates the ability to plan, conduct, report and follow up on ISMS audits using ISO 19011 and ISO/IEC 17021-1 principles. It is the standard credential for internal auditors, certification body auditors and consultants who assess ISO 27001 compliance.

QuestionsSee official page
Time limit180 minutes
Passing scoreSee official page
Exam feeSee official page
Valid for3 years
DeliveryPECB online proctored exam or in person after training

Format: Multiple choice, open book, standalone and scenario-based questions. Fee note: Exam is normally bundled with the 5-day accredited training course; one free retake within 12 months.

Who it's for

Internal auditors, IT auditors, GRC consultants and certification body auditors who assess ISMS conformity.

What the exam covers

Fundamental principles and concepts of an ISMS—
Information security management system (ISMS)—
Fundamental audit concepts and principles—
Preparation of an ISO/IEC 27001 audit—
Conducting an ISO/IEC 27001 audit—
Closing an ISO/IEC 27001 audit—
Managing an ISO/IEC 27001 audit program—

A dash means the vendor does not publish a weight for that domain.

Eligibility & prerequisites

Required: PECB awards the level based on experience: Provisional Auditor (exam only); Auditor (2 years total, 1 year in information security management, 200 hours of audit activity); Lead Auditor (5 years total, 2 years in ISMS, 300 hours of audit activity); Senior Lead Auditor (10 years, 7 years, 1,000 hours). All require the PECB Code of Ethics.

Recommended: Familiarity with ISO/IEC 27001 requirements and ISO 19011 audit guidelines, plus some audit or compliance work.

Keeping it active

Certification is maintained with an annual maintenance fee and continuing professional development (CPD) hours reported to PECB, with renewal every 3 years; see PECB Certification Rules and Policies for current amounts.

Skills & careers

Skills it validates

  • Planning audits and building audit plans
  • Collecting and evaluating audit evidence
  • Sampling and interviewing techniques
  • Writing nonconformities and audit reports
  • Leading an audit team and opening/closing meetings
  • Managing an audit program and follow-up

Job roles

ISO 27001 Lead AuditorIT AuditorInternal AuditorGRC ConsultantCertification Body AuditorCompliance Analyst

Where it fits in your path

Planning a degree too? See how this cert earns college credit in the College Credit Navigator.

Build my study plan

  1. Week 1: Read ISO/IEC 27001:2022 and ISO 19011 audit principles.
  2. Week 2: Attend the 5-day PECB Lead Auditor course and complete the audit role-play exercises.
  3. Week 3: Practice writing nonconformity statements against clauses using course case studies.
  4. Week 4: Tab the standards and sit the exam.

Make it yours: pick your exam date and weekly hours. We'll split your time by domain weight and give you a printable plan.

Exam-day tips

  • Know how to grade findings (major vs minor nonconformity, opportunity for improvement).
  • Scenario questions follow the audit sequence: preparation, stage 1, stage 2, closing, follow-up.
  • Auditors verify and report; they do not recommend or implement fixes.
  • Tab ISO 19011 sections on audit principles and evidence.
  • Watch for independence and objectivity traps in auditor-role questions.

Key terms for this exam

All 29 terms Study with thinQcards™

Frequently asked questions

How long is the Lead Auditor exam?

Three hours, open book, multiple choice.

What are the Lead Auditor experience requirements?

Five years of total experience including two in information security management and 300 hours of audit activity; less experienced candidates receive Provisional Auditor or Auditor.

PECB vs IRCA/CQI Lead Auditor?

Both are widely accepted; some certification bodies and regions prefer one. Check employer or client requirements.

Is ISO 27001 Lead Auditor worth it?

Yes for audit and GRC roles; demand rose with the 2022 standard transition and supply chain security requirements.

How do I maintain it?

Pay the annual maintenance fee and report CPD, with renewal every three years.

Official page: pecb.com. Reviewed November 2026. Vendors change fees and objectives, so confirm with the vendor before you book. Spot something out of date? Tell us.