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Evaluating Scenarios for Completeness and Relevance

Risk scenarios · 1 min read

Checking each scenario

Scenario checks: realistic, specific, business-linked, owned, complete set, current.

Checking the whole set

Coverage questionIf the answer is no
Are all critical processes covered?Add scenarios for the gaps
Are all event types represented?Add errors, failures and supplier events
Are key third parties included?Add supplier and outsourcing scenarios
Do recent incidents map to a scenario?The set is missing something

Validating with the business

A scenario is ready when its owner reads it and says “yes, that could happen to us, and here’s what it would cost”. If the owner doesn’t recognise it, it will be mis-rated or ignored.

Example. A practitioner maps the last two years of incidents against the scenario set. Three incidents, all caused by failed changes, have no matching scenario. A “failed change on a core system” scenario is added and rated high.

How the exam asks about it

If the question asks…The answer is usually…
BEST way to validate scenariosReview them with business owners
Test of scenario completenessCompare with incidents, assets and processes
When to update scenariosOn significant business, technology or threat change
Scenario no owner recognisesRework it before rating

In short

  • Check each scenario before rating: realistic, specific, business-linked, owned and current.
  • Check the set as a whole: does it cover key processes, assets, threat types and third parties?
  • Validate scenarios with the business owners who will own them.
  • Compare the set with incidents, audit findings and industry data to find gaps.
  • Review scenarios when the business, technology or threat landscape changes.

Exam traps

  • Rating scenarios before checking whether they're realistic and complete.
  • Covering only cyberattacks and missing errors, failures and supplier events.
  • Keeping scenarios that no longer match current systems.
  • Accepting scenarios no business owner recognises.

Slides

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CRISC · Domain 2 · Risk scenarios

Evaluating Scenarios for Completeness and Relevance

How to check that each risk scenario is realistic, specific, business-linked and owned, and that the set as a whole covers the organisation's key assets, processes and threats.

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