Which of the following media sanitization techniques is MOST likely to be effective for an organization using public cloud services?

Question

Options

• ALow-level formatting
• BSecure-grade overwrite erasure
• CCryptographic erasure
• DDrive degaussing

• A
  7% (2)
• B
  14% (4)
• C
  76% (22)
• D
  3% (1)

Explanation

Media sanitization is the process of rendering the data on a storage device inaccessible or unrecoverable by a given level of effort. For an organization using public cloud services, the most effective media sanitization technique is cryptographic erasure, which involves encrypting the data on the device with a strong key and then deleting the key, making the data unreadable. Cryptographic erasure is suitable for cloud environments because it does not require physical access to the device, it can be performed remotely and quickly, and it does not affect the performance or lifespan of the device. Low-level formatting, secure-grade overwrite erasure, and drive degaussing are media sanitization techniques that require physical access to the device, which may not be possible or feasible for cloud users. Additionally, these techniques may not be compatible with some cloud storage technologies, such as solid-state drives (SSDs) or flash memory, and they may reduce the performance or lifespan of the device.

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