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CISM · Question #863

CISM Question #863: Real Exam Question with Answer & Explanation

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

Question

An organization shut down its system during a cyberattack. When the system was brought back online, the organization's data was then encrypted by ransomware. Which of the following is the MOST likely cause of the successful ransomware installation?

Options

  • AThe organization did not have a patching and vulnerability management program.
  • BThe firewall was not properly configured to prevent the attack.
  • CThe system lacked the necessary encryption and security measures.
  • DThe containment response to the attack failed.

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Topics

#Ransomware#Incident response#Containment failure#System remediation
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