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ISO 27001 FAQ

Straight answers to the ISO 27001 questions teams ask when they are actually building an ISMS.

Focused on current edition facts, audit traceability, and the decisions that usually create confusion.

Author
Sorena AI
Published
Mar 4, 2026
Updated
Mar 4, 2026
Questions
6

Structured answer sets in this page tree.

Primary sources
4

Cited legal and guidance references.

Publication metadata
Sorena AI
Published Mar 4, 2026
Updated Mar 4, 2026
Overview

ISO 27001 questions usually sound simple but hide implementation traps. The recurring ones are about scope, what Annex A really means, how the Statement of Applicability should work, and what an auditor is going to expect to see. This FAQ answers those with the current 2022 edition and current certification context in mind.

Question 1

What is ISO/IEC 27001:2022?

ISO/IEC 27001:2022 is the current third edition of the requirements standard for information security management systems. It was published in October 2022 and later received Amendment 1 in 2024 for climate action changes.

The standard is a requirements document, not a library of example controls. It specifies what an ISMS has to do and how it has to be managed.

  • Current core edition: third edition, 2022-10
  • If you claim conformity, requirements in Clauses 4 to 10 cannot be excluded
  • Use it as the governing requirements layer for the ISMS
Question 2

Do we have to implement every Annex A control?

No. ISO 27001 is risk-based. You determine necessary controls through risk treatment, then compare them against Annex A so that no necessary control from the reference set has been omitted by mistake.

That means exclusions are possible, but only with a defensible rationale and clear documentation in the Statement of Applicability.

  • Annex A is a normative reference set, not a blanket mandate to implement every item
  • The 2022 reference structure aligns to 93 controls used in ISO/IEC 27002:2022
  • Weak exclusion reasoning is one of the most common audit issues
Question 3

What exactly must the Statement of Applicability include?

The Statement of Applicability must identify the necessary controls, justify why they are included, state whether they are implemented, and justify exclusions of Annex A controls. It is one of the main outputs of risk treatment.

In practice, the SoA is the shortest route from risk decisions to audit sampling. If it is sloppy, the whole audit gets slower.

  • Keep every SoA line tied to a risk treatment decision and a named owner
  • Implementation status in the SoA should match current records, not intention
  • Use one SoA, not multiple local copies with different truth states
Question 4

How do ISO 27002 and ISO 27005 fit in?

ISO 27001 is the requirements standard. ISO 27002 gives guidance on information security controls, and ISO 27005 gives guidance on managing information security risks in support of the ISMS.

A mature implementation uses ISO 27001 to define what must exist, ISO 27002 to improve control design, and ISO 27005 to strengthen the risk cycle.

  • Use ISO 27002 when teams need better control implementation guidance
  • Use ISO 27005 when teams need a stronger method for identifying, assessing, treating, communicating, monitoring, and reviewing risk
Question 5

What is current for certification in 2026?

Certification work should now be anchored to ISO/IEC 27001:2022. The transition period from the 2013 edition has ended, so the old edition should not be your working assumption for current certification planning.

On the certification-body side, ISO/IEC 27006-1:2024 is the current standard for bodies that audit and certify ISMS.

  • Expect certification and surveillance activity to be framed against the 2022 edition
  • Check certification status through accredited channels such as IAF CertSearch where applicable
  • If you operate across sites, multi-site rules can materially affect audit planning
Question 6

What do ISO 27001 auditors usually ask for first?

Auditors typically start with scope, the risk methodology, risk assessment results, risk treatment decisions, the Statement of Applicability, and evidence that the selected controls operate. They then move into internal audits, management reviews, and corrective actions.

What they are really testing is whether the ISMS tells one consistent story from decision to evidence.

  • Prepare scope, risk method, SoA, risk treatment plan, and a small set of traceability walkthroughs
  • Have management review and internal audit outputs ready, not just calendar placeholders
  • Be able to show current evidence for the controls you claim are implemented
Recommended next step

Use ISO 27001 FAQ as a cited research workflow

Research Copilot can take ISO 27001 FAQ from cited answers to recurring questions on this topic to a reusable workflow inside Sorena. Teams working on ISO 27001 can keep owners, evidence, and next steps aligned without copying this guide into separate documents.

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