An organization is retiring old storage arrays where archived client records were once kept. The security team wants to reduce leftover bits and eliminate unauthorized retrieval attempts. Which method best reduces the likelihood of this scenario?
Rely on a quick reformat tool
Use a multi-pass overwriting procedure
Detach and discard the devices unmodified
Keep them in a designated space once no longer in use
A multi-pass overwrite procedure disrupts residual data at the physical level of the storage medium, making it extremely difficult for recovery tools to extract prior content. Simply reformatting or storing devices in restricted areas does not eliminate old data. Discarding unaltered drives is risky, as the information remains intact. By repeatedly overwriting each sector, multi-pass wiping ensures the original data cannot be reconstructed through standard or forensic means.
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Why is multi-pass overwriting more secure than quick formatting?
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What are some examples of tools that perform multi-pass overwriting?
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What standards or guidelines exist for secure data wiping?