Why erase file with random patterns instead of all 0's or 1's?

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Music by Eric Matyas
https://www.soundimage.org
Track title: Romantic Lands Beckon

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Chapters
00:00 Question
00:56 Accepted answer (Score 15)
01:43 Answer 2 (Score 3)
03:24 Answer 3 (Score 3)
04:22 Answer 4 (Score 0)
05:44 Thank you

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Full question
https://superuser.com/questions/174883/w...

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Tags
#harddrive #security #datarecovery

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