= A tabletop exercise is the best type of exercise for an incident response team at the first drill, as it is a low-cost, low-risk, and high-value method to test and evaluate the incident response plan, procedures, roles, and capabilities. A tabletop exercise is a simulation of a realistic scenario that involves a security incident, and requires the participation and discussion of the incident response team members and other relevant stakeholders. The tabletop exercise allows the incident response team to identify and address the gaps, issues, or challenges in the incident response process, and to improve the communication, coordination, and collaboration among the team members and other parties. The tabletop exercise also helps to enhance the knowledge, skills, and confidence of the incident response team members, and to prepare them for more complex or advanced exercises or real incidents.

A red team exercise (A) is a type of exercise that involves a group of ethical hackers or security experts who act as adversaries and attempt to compromise the organization’s security defenses, systems, or processes. A red team exercise is a high-cost, high-risk, and high-value method to test and evaluate the security posture and resilience of the organization, and to identify and exploit the security weaknesses or vulnerabilities. However, a red team exercise is not the best type of exercise for an incident response team at the first drill, as it is more suitable for a mature and experienced team that has already tested and validated the incident response plan, procedures, roles, and capabilities.

A black box penetration test (B) is a type of security testing that simulates a malicious attack on the organization’s systems or processes, without any prior knowledge or information about them. A black box penetration test is a high-cost, high-risk, and high-value method to test and evaluate the security posture and resilience of the organization, and to identify and exploit the security weaknesses or vulnerabilities. However, a black box penetration test is not the best type of exercise for an incident response team at the first drill, as it is more suitable for a mature and experienced team that has already tested and validated the incident response plan, procedures, roles, and capabilities.

A disaster recovery exercise © is a type of exercise that simulates a catastrophic event that disrupts or destroys the organization’s critical systems or processes, and requires the activation and execution of the disaster recovery plan, procedures, roles, and capabilities. A disaster recovery exercise is a high-cost, high-risk, and high-value method to test and evaluate the disaster recovery posture and resilience of the organization, and to identify and address the recovery issues or challenges. However, a disaster recovery exercise is not the best type of exercise for an incident response team at the first drill, as it is more suitable for a mature and experienced team that has already tested and validated the incident response plan, procedures, roles, and capabilities.

References = CISM Review Manual, 16th Edition, Chapter 4: Information Security Incident Management, Section: Incident Response Plan, Subsection: Testing and Maintenance, page 184-1851