Information gained from evaluating information security incidents should be used to improve both user awareness and training and the incident management plan. Control 5.27 focuses on learning from incidents so that organizations reduce the likelihood or impact of recurrence. Incident evaluation can reveal root causes, control failures, user mistakes, unclear procedures, delayed escalation, insufficient logging, poor communication, supplier weaknesses, or technical vulnerabilities. If users contributed to the incident through phishing response, mishandling of information, weak passwords, or reporting delays, awareness and training should be improved. If the incident response process showed weaknesses in roles, escalation, evidence collection, communication, containment, recovery, or decision-making, the incident management plan should be updated. ISO/IEC 27002 treats incidents as a feedback mechanism for continual improvement, not merely isolated events to close. Option B is correct because both listed uses are valid and mutually reinforcing. Strong incident learning improves controls, procedures, monitoring, user behavior, and readiness for future events. References/Chapters: ISO/IEC 27002:2022, Control 5.27 Learning from information security incidents; Control 5.24 Information security incident management planning and preparation; Control 6.3 Information security awareness, education and training.
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