Certified Information Systems Auditor CISA · Free Practice Question Easy
Question 33
You are an information system auditor of HDA Inc. You need to figure out the BEST way to destroy sensitive information saved on electronic media. Which of the following choices would work the best?
- A A. Overwriting the data multiple times
- B B. Encrypting the data with strong algorithms
- C C. Physical destruction of the media
- D D. Formatting the media
Reveal correct answer
Correct answer: C
Explanation
Correct Answer: C. Physical destruction of the media Explanation: The most effective method of destroying sensitive data stored on electronic media is through physical destruction of the media. Physical destruction ensures that the data cannot be recovered or accessed by unauthorized individuals. This can be achieved through methods such as shredding the media, pulverizing it, or degaussing for magnetic media. Overwriting the data multiple times (option A) can be effective in some cases, but there is still a potential for data recovery using specialized techniques. Strong encryption (option B) can protect the data while it is stored and during transmission, but if the encryption keys are compromised, the data can be accessed. Formatting the media (option D) may remove the file references but does not guarantee complete data erasure. Physical destruction of the media, on the other hand, ensures that the data is irrecoverable. By physically destroying the media, such as shredding it into small pieces or using specialized destruction equipment, the sensitive data is rendered unreadable and inaccessible. Therefore, the MOST effective method of destroying sensitive data stored on electronic media is through physical destruction of the media, providing a high level of assurance that the data cannot be recovered or compromised.Discussion
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