Question 390
An ISMS reviewer examines the following case: A retailer calls an unpatched remote service a threat even though the actual threat is exploitation by an attacker. What evidence would most directly show that the response is operating effectively?
Explanation
Correct Answer
Risk records explicitly link a scenario, exploitable weakness, adverse event and business consequence. This is the relevant test result for the scenario in which a retailer calls an unpatched remote service a threat even though the actual threat is exploitation by an attacker. It verifies the action to distinguish plausible threat events from exploitable weaknesses and evaluate their combined risk. The corresponding operating design is to document threat sources, exposed vulnerabilities, likely events, impacts and existing safeguards. The result should rule out the error of treating the existence of a weakness alone as a complete quantified risk decision.
Incorrect Answers
An obligation trace shows each relevant requirement has an accountable implementation and review owner. This may be a useful result for applicable interested-party requirements in another case, such as when a payments startup focuses only on customer contracts while ignoring jurisdiction-specific breach duties. It does not establish effectiveness of the controls necessary for the described problem. The relevant evidence is that risk records explicitly link a scenario, exploitable weakness, adverse event and business consequence. Case: A retailer calls an unpatched remote service a threat even though the actual threat is exploitation by an attacker.
Contracts and operating evidence show each party performs assigned controls without responsibility gaps. This may be a useful result for shared security responsibility in another case, such as when a SaaS adopter assumes its cloud provider will approve all tenant-user entitlements and app settings. It does not establish effectiveness of the controls necessary for the described problem. The relevant evidence is that risk records explicitly link a scenario, exploitable weakness, adverse event and business consequence. Case: A retailer calls an unpatched remote service a threat even though the actual threat is exploitation by an attacker.
Treatment records map evaluated risks to implemented measures and residual-risk approval. This may be a useful result for risk treatment versus control list in another case, such as when a municipal service chooses expensive security tools before identifying which risks they address. It does not establish effectiveness of the controls necessary for the described problem. The relevant evidence is that risk records explicitly link a scenario, exploitable weakness, adverse event and business consequence. Case: A retailer calls an unpatched remote service a threat even though the actual threat is exploitation by an attacker.





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