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Is using multiple passes for wiping a disk really necessary?

Fresh5 days ago
Mar 15, 202634603 views
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Problem

To stupid people, like me, you would have thought overwriting each bit on a disk would render the data completely unrecoverable. Why do disk wiping tools have the option for multiple passes, i.e. 3 or 5, even 7 and different methods? Surely the first pass does the job? My question - Is it just down…

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Fix for: Is using multiple passes for wiping a disk really necessary?

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It's paranoia. The fastest way to "delete" things on a hard drive is simply to remove the references to that region of the hard drive, so the data remains there if you used a dedicated tool to recover it, the kind the police would have for example. …

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