HTG Explains: Why You Only Have to Wipe a Disk Once to Erase It
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by Chris Hoffman
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Published on Sun, 03 Jun 2012 10:00:07 GMT
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2012/06/03
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You’ve probably heard that you need to overwrite a drive multiple times to make the data unrecoverable. Many disk-wiping utilities offer multiple-pass wipes. This is an urban legend – you only need to wipe a drive once.
Wiping refers to overwriting a drive with all 0’s, all 1’s, or random data. It’s important to wipe a drive once before disposing of it to make your data unrecoverable, but additional wipes offer a false sense of security.
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