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CISM · Question #358

An information security manager learns that a third-party data processor has been compromised by a cyberattack. Which of the following should be done FIRST?

The correct answer is D. Categorize and document the incident. The first step when learning about a third-party data processor compromise is to categorize and document the incident. This ensures a clear understanding of the scope, impact, and severity of the situation, enabling an appropriate and coordinated response in line with the…

Submitted by kevin_r· Apr 18, 2026Information Security Incident Management

Question

An information security manager learns that a third-party data processor has been compromised by a cyberattack. Which of the following should be done FIRST?

Options

  • ARequire a scan and reboot of affected IT systems.
  • BEscalate the incident to senior management.
  • CRequire a shutdown of affected IT systems.
  • DCategorize and document the incident.

How the community answered

(36 responses)
  • A
    19% (7)
  • B
    8% (3)
  • C
    3% (1)
  • D
    69% (25)

Explanation

The first step when learning about a third-party data processor compromise is to categorize and document the incident. This ensures a clear understanding of the scope, impact, and severity of the situation, enabling an appropriate and coordinated response in line with the organization's incident response plan.

Topics

#Incident Response#Incident Categorization#Initial Incident Handling#Documentation

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