---
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/items/page/3"
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)

## All FAQ items

*Page 3 of 3. Showing 2 of 32 items.*

### [Who owns and approves treatment options decisions?](/artifacts/global/iso-27005/faq/treatment-options.md#who-owns-and-approves-treatment-options-decisions)

*Module: [ISO/IEC 27005 Treatment Options](/artifacts/global/iso-27005/faq/treatment-options.md)*

The risk owner approves the treatment plan and decides whether residual risk is acceptable. Treatment owners implement assigned actions and control owners operate controls. Analysts can estimate expected risk reduction, but they do not replace the risk owner's approval.

- Assign each action, resource, target date, and effectiveness measure to a named owner.
- Escalate when residual risk exceeds the owner's delegated acceptance level or treatment needs authority across organizational boundaries.
- Obtain approval again when material changes alter the plan, expected residual risk, cost, or completion date.

Sources for this answer:

- [ISO/IEC 27005:2022 standard page](https://www.iso.org/standard/80585.html?ref=sorena.io) - ISO/IEC 27005:2022 Clause 8.6 and Clause 10.3 distinguish risk-owner approval and acceptance from implementation and communication responsibilities.

### [When should treatment options be reviewed?](/artifacts/global/iso-27005/faq/treatment-options.md#when-should-treatment-options-be-reviewed)

*Module: [ISO/IEC 27005 Treatment Options](/artifacts/global/iso-27005/faq/treatment-options.md)*

Review treatment at planned milestones and when implementation, effectiveness, context, threats, vulnerabilities, controls, criteria, or the scenario changes. If treatment is ineffective or the residual risk remains unacceptable, revise the plan or repeat the assessment and treatment process.

- Measure whether controls operate and modify likelihood or consequence as expected.
- Trigger review after delays, failed controls, audit findings, incidents, user circumvention, new threats or vulnerabilities, or changed requirements.
- Record the new residual risk and obtain a new acceptance or further-treatment decision.

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 5.1, 9.2, 10.7, and 10.8 describe iterative treatment, implementation, effectiveness review, plan revision, and ongoing monitoring.

## FAQ Pagination

- Canonical index (page 1): [/artifacts/global/iso-27005/faq/items](/artifacts/global/iso-27005/faq/items.md)
- Page 1 rule: `/page/1` is intentionally not generated; use the canonical index markdown URL.
- Current page: 3 of 3

Pages: [1](/artifacts/global/iso-27005/faq/items.md) | [2](/artifacts/global/iso-27005/faq/items/page/2.md) | [3](/artifacts/global/iso-27005/faq/items/page/3.md)

[Previous page](/artifacts/global/iso-27005/faq/items/page/2.md)

*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.


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