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ISO 27005 Risk assessment template

A practical risk assessment template that produces clearer decisions and better review conversations.

Built for consistency, comparability, and later defensibility under audit or management challenge.

Author
Sorena AI
Published
Mar 4, 2026
Updated
Mar 4, 2026
Sections
3

Structured answer sets in this page tree.

Primary sources
2

Cited legal and guidance references.

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

A useful ISO 27005 assessment record does more than assign a score. It shows the scenario, the affected assets or services, the reasoning behind consequence and likelihood, the uncertainty in the assessment, the responsible risk owner, and whether the result crosses the acceptance threshold. This template is designed to capture all of that without turning the process into paperwork for its own sake.

Section 2

Field set for each risk record

The fields below are designed to make the record understandable six months later by someone who was not in the original workshop. That is the standard you should optimize for.

Where evidence is thin, capture that uncertainty explicitly rather than hiding it behind a false sense of scoring precision.

  • Risk ID, short title, detailed scenario description, and affected business service or information asset
  • Risk owner, contributors, and any third-party dependencies involved in the scenario
  • Threat or event description, vulnerability or weakness, and preconditions or exposure path
  • Existing controls and their current effectiveness or limitations
  • Consequence rationale across the categories that matter to the organization
  • Likelihood rationale, supporting signals, and confidence level
  • Uncertainty notes explaining where the assessment is weak or assumption-dependent
  • Final level of risk, acceptance decision, and treatment priority
Recommended next step

Keep ISO 27005 Risk assessment template in one governed evidence system

SSOT can take ISO 27005 Risk assessment template from reusing this material inside a governed evidence system to a reusable workflow inside Sorena. Teams working on ISO 27005 can keep owners, evidence, and next steps aligned without copying this guide into separate documents.

Section 3

Quality checks that make the template usable

A good template only stays good if it is governed. The fastest quality gain usually comes from calibration sessions, peer review of high-risk items, and forcing rationale fields to be written in plain language rather than shorthand.

Use the same template in risk reviews, management reporting, and treatment planning so the handoff is clean.

  • Require written rationale for all high-risk or exception-based assessments
  • Review a sample of assessments periodically for scoring consistency
  • Carry the same risk ID into treatment plans, audit findings, and review records
Primary sources

References and citations

nvlpubs.nist.gov
Referenced sections
  • Useful public guidance for assessment structure, risk factors, uncertainty, and communicating assessment results.
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