Question 300
An ISMS implementation lead examines this case: An ISP reports suspected account takeover in email without structured classification or escalation. Which intervention most directly addresses the security management problem?
Explanation
Correct Answer
Operate a defined information security incident response process. The specific evidence is that an ISP reports suspected account takeover in email without structured classification or escalation. In practical terms, the team should specify event assessment, incident classification, responders, containment and communication responsibilities. Effectiveness can then be demonstrated when exercise records show events are triaged and significant incidents are handled and logged. Without this intervention, the main exposure is poor prioritization and uncoordinated response to genuine security incidents.
Incorrect Answers
Operate a communication plan with defined audiences, triggers and approved channels. This is a plausible intervention for a different ISMS issue, such as when an online marketplace sends customer incident notices without legal or executive review. It does not directly remedy security event triage and response in the described case. Here the primary action is to operate a defined information security incident response process. Case: An ISP reports suspected account takeover in email without structured classification or escalation.
Deliver training based on required job competence and verify effective behavior. This is a plausible intervention for a different ISMS issue, such as when a development team completes generic security modules but still commits live secrets to source control. It does not directly remedy security event triage and response in the described case. Here the primary action is to operate a defined information security incident response process. Case: An ISP reports suspected account takeover in email without structured classification or escalation.
Coordinate information security continuity needs with business continuity and recovery arrangements. This is a plausible intervention for a different ISMS issue, such as when a manufacturer tests restoring files yet has no plan for essential customer service processes. It does not directly remedy security event triage and response in the described case. Here the primary action is to operate a defined information security incident response process. Case: An ISP reports suspected account takeover in email without structured classification or escalation.





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