220-802 · Question #827
Which of the following drive destruction methods is considered the MOST secure when dealing with highly sensitive data?
The correct answer is D. Shredding. Physical shredding is the most secure data destruction method because it renders the storage media completely unreadable and unrecoverable by destroying it into small fragments.
Question
Which of the following drive destruction methods is considered the MOST secure when dealing with highly sensitive data?
Options
- ADegaussing
- BWiping
- CMagnetizing
- DShredding
How the community answered
(31 responses)- A3% (1)
- B6% (2)
- C13% (4)
- D77% (24)
Why each option
Physical shredding is the most secure data destruction method because it renders the storage media completely unreadable and unrecoverable by destroying it into small fragments.
Degaussing exposes magnetic media to a strong magnetic field and is effective for HDDs and tapes, but is completely ineffective on SSDs and flash-based storage that use no magnetic encoding.
Wiping overwrites data with zeros or random patterns, but sophisticated forensic techniques may recover residual data, and it may not fully sanitize all sectors on worn SSDs.
Magnetizing is not a recognized or standard data destruction method and would not reliably destroy data on any media type.
Shredding physically pulverizes the drive platters or flash chips into particles small enough that no data can be extracted, even with forensic laboratory equipment. It is effective against all storage types including SSDs, HDDs, and flash media. For highly sensitive data, physical destruction is the only method guaranteed to prevent any form of recovery.
Concept tested: Secure physical data destruction methods for sensitive media
Source: https://csrc.nist.gov/publications/detail/sp/800-88/rev-1/final
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