AHIMA recommends which method as the preferred destruction for computerized data?

AHIMA recommends which method as the preferred destruction for computerized data?

• A. Overwriting data with random bits
• B. Magnetic degaussing
• C. Physical destruction of media
• D. Deleting files from the system

Answer: (B)

Rendering information unrecoverable when disposing of computerized data is the central goal. For magnetic media such as hard drives and tapes, applying a strong magnetic field to erase the stored information—magnetic degaussing—erases data across the entire media surface, making recovery extremely unlikely. This method is favored because it addresses the whole device quickly and thoroughly, rather than relying on file-by-file deletion, which can leave traces in unallocated space or hidden areas. Overwriting data can be effective but may not guarantee complete removal of all bits in every location, and it requires careful, verifiable procedures. Deleting files from the system is not sufficient because the data can often be recovered from unallocated space or backups. Physically destroying the media ensures data cannot be recovered, but it also destroys the device, which may not align with asset management or replacement plans. In many contexts, magnetic degaussing is the preferred destruction for magnetic media, with the caveat that it does not apply to nonmagnetic media (like solid-state drives) where other methods are used.

Rendering information unrecoverable when disposing of computerized data is the central goal. For magnetic media such as hard drives and tapes, applying a strong magnetic field to erase the stored information—magnetic degaussing—erases data across the entire media surface, making recovery extremely unlikely. This method is favored because it addresses the whole device quickly and thoroughly, rather than relying on file-by-file deletion, which can leave traces in unallocated space or hidden areas. Overwriting data can be effective but may not guarantee complete removal of all bits in every location, and it requires careful, verifiable procedures. Deleting files from the system is not sufficient because the data can often be recovered from unallocated space or backups. Physically destroying the media ensures data cannot be recovered, but it also destroys the device, which may not align with asset management or replacement plans. In many contexts, magnetic degaussing is the preferred destruction for magnetic media, with the caveat that it does not apply to nonmagnetic media (like solid-state drives) where other methods are used.