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CompTIA Security+ study material · question 181 of 611

How does NIST define media sanitisation?

  1. Encrypting the media with an approved algorithm
  2. Rendering the target data infeasible to recover for a given level of effort
  3. Deleting the file system index so files cannot be listed
  4. Physically destroying the storage device
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Answer: B. Rendering the target data infeasible to recover for a given level of effort

The definition is relative to the effort an adversary might apply, which is why the right technique depends on who might try.

Source: NIST SP 800-88 Rev. 1 (NIST) — SP 800-88 Rev. 1 § 2.5 Types of Sanitization

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