Free CISM Incident Management Practice Test 2026 — Certified Information Security Manager Questions

This free CISM Incident Management practice test covers CISM Domain 4 (~30%) — incident management, including IR planning, containment, eradication, forensics, BCP/DRP, and post-incident review. Each question includes a detailed explanation aligned to the ISACA CISM Review Manual and CISM Job Practice Areas.

Key Topics in CISM Incident Management

6 Free CISM Incident Management Practice Questions with Answers

Sample Question 1 — Incident Management

A multinational corporation has recently experienced a data breach. As the Information Security Manager, you are tasked with leading the incident response. Which of the following actions should be your first priority?

  1. A. Notifying affected customers and stakeholders about the breach.
  2. B. Isolating affected systems to prevent further data exfiltration. (Correct answer)
  3. C. Conducting a full forensic analysis to understand the breach's origin.
  4. D. Reviewing and updating the incident response plan based on the breach.

Correct answer: B

Explanation: The first priority in an incident response is to contain the breach to prevent further damage. Isolating affected systems helps to stop the exfiltration of data and limits the scope of the breach. This action is critical before any communication or analysis takes place.

Sample Question 2 — Incident Management

During a routine security audit, it was discovered that multiple unauthorized access attempts were made to the company's critical database. As the Information Security Manager, what should be your immediate next step?

  1. A. Update the database's access control settings to enhance security.
  2. B. Initiate a full incident response process to investigate the attempts. (Correct answer)
  3. C. Report the findings to senior management and recommend a security awareness program.
  4. D. Conduct a risk assessment to determine the potential impact of these attempts.

Correct answer: B

Explanation: Initiating a full incident response process is the appropriate immediate action. This ensures that the attempts are thoroughly investigated to determine if they were successful or if there is an ongoing threat. It also helps in identifying any vulnerabilities that need addressing.

Sample Question 3 — Incident Management

A financial institution is in the middle of a cyber attack that is disrupting its online services. What is the most effective way for the Information Security Manager to communicate with the incident response team during this crisis?

  1. A. Use the institution's email system to send updates and instructions.
  2. B. Establish a secure, dedicated communication channel for the response team. (Correct answer)
  3. C. Hold regular in-person meetings to discuss the status and next steps.
  4. D. Rely on mobile phone calls to quickly disseminate information.

Correct answer: B

Explanation: Establishing a secure, dedicated communication channel is crucial during an incident to ensure that sensitive information is not intercepted and that the team can communicate effectively without relying on potentially compromised systems.

Sample Question 4 — Incident Management

After a significant security incident, the Information Security Manager is tasked with leading a post-incident review. What is the primary goal of this review?

  1. A. To assign blame to those responsible for the incident.
  2. B. To identify lessons learned and improve future incident response efforts. (Correct answer)
  3. C. To document the incident for legal and compliance purposes.
  4. D. To reassure stakeholders that the issue has been resolved.

Correct answer: B

Explanation: The primary goal of a post-incident review is to identify lessons learned and improve future incident response efforts. This involves analyzing what went well and what could be improved, ensuring that the organization is better prepared for future incidents.

Sample Question 5 — Incident Management

An organization has experienced a ransomware attack, and the Information Security Manager is considering whether to pay the ransom. What is the most critical factor to consider in making this decision?

  1. A. The cost of the ransom compared to the potential data loss.
  2. B. The likelihood of data recovery after the ransom is paid.
  3. C. The organization's policy and legal implications of paying the ransom. (Correct answer)
  4. D. The urgency of restoring operations to normalcy.

Correct answer: C

Explanation: The most critical factor is the organization's policy and the legal implications of paying the ransom. Organizations must consider whether paying the ransom aligns with their policies and complies with legal requirements, as paying may have legal consequences and may not guarantee data recovery.

Sample Question 6 — Incident Management

An organization has just experienced a data breach, and the incident response team is in the initial phase of managing the incident. What is the most critical action they should take first?

  1. A. Notify affected customers about the breach.
  2. B. Contain the breach to prevent further data loss. (Correct answer)
  3. C. Conduct a forensic analysis to determine the breach's origin.
  4. D. Update the incident response plan with lessons learned.

Correct answer: B

Explanation: In the initial phase of incident management, the primary focus should be on containment to prevent further data loss or damage. Containment helps to stabilize the incident and is a critical step before moving on to other actions such as notification, analysis, or updating plans. Notifying customers (A) is important but should be done after containment. Conducting forensic analysis (C) is part of the investigation phase, which follows containment. Updating the incident response plan (D) is part of the post-incident review.

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