= The method of operation used by the attacker is the most useful information for an information security manager when conducting a post-incident review of an attack. This information can help identify the root cause of the incident, the vulnerabilities exploited, the impact and severity of the attack, and the effectiveness of the existing security controls. The method of operation can also provide insights into the attacker's motives, skills, and resources, which can help improve the organization's threat intelligence and risk assessment. The cost of the attack to the organization, the location of the attacker, and the details from IDS logs are all relevant information for a post-incident review, but they are not as useful as the method of operation for improving the incident handling process and preventing future attacks. References = CISM Review Manual 2022, page 316; CISM Item Development Guide 2022, page 9; ISACA CISM: PRIMARY goal of a post-incident review should be to?