"Johnson, Tracy" <[log in to unmask]> wrote

> Target Practice would actually leave portions of the disc
> intact and therefore readable through forensic processes.
>
> Even writing ones and zeroes three times is not effective with
> the proper technology to recover the data.  Although it is usually
> sufficient for government purposes, and is the usual guideline.
> There is a procedure to recover erased data from disks that uses
> latent states of magnetism from of the original write on
> magnetic media.

I have read, in more than one place I believe, that a minimum of seven
overwrites will foil the above recovery process.

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