---
title: "ISO/IEC 27005 Risk Management FAQ"
canonical_url: "https://www.sorena.io/artifacts/global/iso-27005/faq"
source_url: "https://www.sorena.io/artifacts/global/iso-27005/faq"
author: "Sorena AI"
description: "Answers to common ISO/IEC 27005:2022 questions about risk assessment, treatment, acceptance, ownership, records, and review."
published_at: "2026-05-09"
updated_at: "2026-07-24"
keywords:
  - "ISO/IEC 27005 FAQ"
  - "ISO/IEC 27005"
  - "ISO/IEC 27005 Information Security Risk Management"
  - "ISO/IEC 27005 FAQ checklist"
  - "ISO/IEC 27005 FAQ evidence"
  - "ISO/IEC 27005 FAQ implementation"
  - "FAQ"
  - "information security risk management"
---
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# ISO/IEC 27005 Risk Management FAQ

Answers to common ISO/IEC 27005:2022 questions about risk assessment, treatment, acceptance, ownership, records, and review.

*FAQ* *Global* *ISO/IEC 27005*

## ISO/IEC 27005 FAQ

ISO/IEC 27005:2022 explains how to establish context and criteria, identify and assess information security risks, choose treatment, accept residual risk, and keep the process under review.

It supports the information security risk requirements in ISO/IEC 27001. ISO/IEC 27005 does not prescribe one scoring method and is not a standalone certification standard.

Use this FAQ to make and document ISO/IEC 27005:2022 risk decisions. Start each risk assessment with its scope and purpose, apply approved consequence, likelihood, evaluation, and acceptance criteria, then record treatment, residual-risk acceptance, ownership, and review triggers.

## Definitions

### Information security risk assessment

**Term:** risk assessment

A risk assessment is the overall process of identifying information security risks, analysing their consequence and likelihood to determine a level of risk, and evaluating the result against approved risk criteria to decide whether treatment is needed and how it should be prioritized.

**Why it matters here:** Assessment produces an evaluated risk and treatment priority. Selecting and implementing controls, approving the treatment plan, and accepting residual risk are later treatment and decision activities.

Sources:

- [ISO/IEC 27005:2022 standard page](https://www.iso.org/standard/80585.html?ref=sorena.io)
- [ISO/IEC 27001:2022 standard page](https://www.iso.org/standard/27001.html?ref=sorena.io)

## Browse sub-FAQ modules

### [ISO/IEC 27005 Asset and Scenario Modeling FAQ](/artifacts/global/iso-27005/faq/asset-and-scenario-modeling.md)

How to use event-based and asset-based risk scenarios under ISO/IEC 27005:2022, including evidence, ownership, and review triggers.

- 4 items

### [ISO/IEC 27005 Impact FAQ](/artifacts/global/iso-27005/faq/impact.md)

How to assess information security consequences under ISO/IEC 27005:2022, with criteria, evidence, ownership, and review triggers.

- 4 items

### [ISO/IEC 27005 Inherent vs Residual Risk FAQ](/artifacts/global/iso-27005/faq/inherent-vs-residual-risk.md)

How ISO/IEC 27005:2022 distinguishes inherent, current, and residual risk, including control assumptions, evidence, and acceptance.

- 4 items

### [ISO/IEC 27005 Likelihood FAQ](/artifacts/global/iso-27005/faq/likelihood.md)

How to estimate likelihood under ISO/IEC 27005:2022 using defined criteria, scenario evidence, control effectiveness, and uncertainty.

- 4 items

### [ISO/IEC 27005 Review Cadence FAQ](/artifacts/global/iso-27005/faq/review-cadence.md)

How to set ISO/IEC 27005:2022 risk review timing using strategic, operational, scheduled, and event-driven reviews.

- 4 items

### [ISO/IEC 27005 Risk Acceptance FAQ](/artifacts/global/iso-27005/faq/risk-acceptance.md)

How to accept information security risk under ISO/IEC 27005:2022 using approved criteria, delegated authority, conditions, and review.

- 4 items

### [ISO/IEC 27005 Risk Owners FAQ](/artifacts/global/iso-27005/faq/risk-owners.md)

How to assign ISO/IEC 27005:2022 risk owners with the accountability, authority, knowledge, approvals, and review evidence the role needs.

- 4 items

### [ISO/IEC 27005 Treatment Options FAQ](/artifacts/global/iso-27005/faq/treatment-options.md)

ISO/IEC 27005:2022 risk treatment options, how to choose controls, approve the plan, assess residual risk, and review effectiveness.

- 4 items

Browse all indexed questions: [/artifacts/global/iso-27005/faq/items](/artifacts/global/iso-27005/faq/items.md)

## What does ISO/IEC 27005 cover?

ISO/IEC 27005:2022 covers the full information security risk management cycle. An assessment identifies risk scenarios and owners, analyses consequence and likelihood, evaluates the result against risk criteria, and prioritizes treatment. Treatment then selects options and controls, plans implementation, evaluates the remaining risk, and obtains the required approvals.

The standard supports ISO/IEC 27001:2022 requirements. ISO/IEC 27001 sets the management-system requirements; ISO/IEC 27005 supplies guidance and examples for carrying them out. ISO/IEC 27002 provides control guidance and does not decide which controls are necessary for a particular risk.

- Define the scope, purpose, internal and external context, interested-party requirements, and risk criteria before assessing scenarios.
- Identify a risk owner with the accountability, authority, and knowledge needed to manage each risk.
- Use a method that produces consistent, valid, comparable results, while tailoring scales and criteria to the organization's context.
- Keep communication, documented information, monitoring, and review active across identification, assessment, treatment, and acceptance rather than adding them only at the end.

Sources for this answer:

- [ISO/IEC 27005:2022 standard page](https://www.iso.org/standard/80585.html?ref=sorena.io) - ISO identifies the current fourth edition, published in October 2022, as guidance for managing information security risks in support of an ISO/IEC 27001-based ISMS.
- [ISO/IEC 27001:2022 standard page](https://www.iso.org/standard/27001.html?ref=sorena.io) - ISO identifies ISO/IEC 27001:2022 as the requirements standard for an information security management system.

## Which records answer common review questions?

Keep enough documented information to reproduce the decision, not merely the final score. Separate the controlled process description from result records. The process description covers criteria, method, ownership, analysis, evaluation, control selection, Annex A comparison, treatment planning, and approval. Result records connect those rules to the scenario, risk owner, control evidence, analysis, evaluation, treatment, residual-risk decision, communications, and later review.

- For consequence, record the affected objectives, confidentiality, integrity, or availability loss, units or scale used, assumptions, and possible cascading effects.
- For likelihood, record relevant history or statistics, threat capability and motivation where applicable, vulnerabilities, exposure, existing-control effectiveness, dependencies between events, and uncertainty.
- For treatment and acceptance, record the option, necessary controls, implementation owner, expected and actual residual risk, risk-owner approval, conditions, time limits, and review trigger.

Sources for this answer:

- [ISO/IEC 27005:2022 standard page](https://www.iso.org/standard/80585.html?ref=sorena.io) - ISO/IEC 27005:2022 Clauses 7, 8, and 10 explain the assessment, treatment, documented-information, communication, monitoring, and review records summarized here.

*Recommended next step for ISO/IEC 27005*

*Placement: after implementation guidance*

## Document the ISO/IEC 27005 decisions

Define owner, evidence requirements, evidence requests, and the next review date before approval.

- [Open Assessment Autopilot for ISO/IEC 27005](/solutions/assessment.md): Create accountable tasks, evidence requests, and review checkpoints from the risk decisions.
- [Talk through ISO/IEC 27005 implementation](/contact.md): Review your current scope, evidence gaps, and next implementation steps.

## How should teams use this FAQ?

Begin with the decision that is blocked. Use the relevant topic page to collect the missing evidence, then apply the organization's approved context, method, and criteria. Route the result to risk evaluation, treatment, acceptance, or review rather than treating an FAQ answer as the decision itself.

- Use asset and scenario modeling to describe the risk before estimating consequence and likelihood.
- Separate the risk owner's approval of a treatment plan from the later decision to accept residual risk.
- Set both a planned review date and event-driven triggers, then update the assessment and treatment when those triggers occur.

Sources for this answer:

- [ISO/IEC 27005:2022 standard page](https://www.iso.org/standard/80585.html?ref=sorena.io) - ISO describes ISO/IEC 27005 as covering assessment, treatment, communication, monitoring, and review across the risk management cycle.
- [ISO/IEC 27001:2022 standard page](https://www.iso.org/standard/27001.html?ref=sorena.io) - ISO/IEC 27001:2022 provides the ISMS requirements that the ISO/IEC 27005 guidance supports.

## Which common misunderstandings should teams avoid?

Do not treat an FAQ answer, template, or heat map as a substitute for the licensed standard or the organization's defined process. ISO/IEC 27005 permits qualitative, quantitative, and semiquantitative analysis and does not prescribe a universal scoring matrix.

- Do not describe ISO/IEC 27005 guidance as legislation or as a standalone certification requirement.
- Do not combine unrelated scenarios only to produce one corporate score when they require different controls.
- Do not assume that sharing risk through insurance or a contract removes the organization's remaining exposure or legal duties.
- Do not treat accepted risk as closed; accepted risks remain subject to monitoring and review.

Sources for this answer:

- [ISO/IEC 27005:2022 standard page](https://www.iso.org/standard/80585.html?ref=sorena.io) - ISO identifies ISO/IEC 27005 as guidance, while the standard itself allows different assessment techniques and organization-specific criteria.
- [ISO/IEC 27001:2022 standard page](https://www.iso.org/standard/27001.html?ref=sorena.io) - ISO identifies ISO/IEC 27001 as the ISMS requirements standard.

## When should these answers be revisited?

Revisit the applicable decision when its assumptions or evidence change, not only when a calendar date arrives. Strategic reviews address changes in organizational context, objectives, business assets, risk sources, threats, and consequences. Operational reviews update detailed scenarios and treatment on a shorter cycle determined by the risks involved.

- Schedule routine assessment early enough to support budget, procurement, and treatment implementation cycles.
- Trigger review after major change, an incident, new threat or vulnerability information, unexpected control testing, changed ownership or criteria, or evidence that treatment is ineffective.
- Preserve the previous decision, changed inputs, new result, owner, approval, and effect on treatment or acceptance.

Sources for this answer:

- [ISO/IEC 27005:2022 standard page](https://www.iso.org/standard/80585.html?ref=sorena.io) - ISO/IEC 27005:2022 Clauses 5.2, 9, and 10.8 support regular and change-driven review, strategic and operational cycles, and monitoring of criteria and treatment.

## Primary sources

- [ISO/IEC 27005:2022 standard page](https://www.iso.org/standard/80585.html?ref=sorena.io) - Official listing for ISO/IEC 27005:2022, edition 4, published October 2022, which provides guidance on the full information security risk management cycle.
  - Quote: "Guidance on managing information security risks"
- [ISO/IEC 27001:2022 standard page](https://www.iso.org/standard/27001.html?ref=sorena.io) - Official listing for ISO/IEC 27001:2022, the ISMS requirements standard supported by ISO/IEC 27005 guidance.
  - Quote: "Information security management systems - Requirements"


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