Re: [ISN] Pentagon Reverses Order to Destroy Old Hard Drives

From: Robert G. Ferrell (rootat_private)
Date: Thu Jun 14 2001 - 10:09:01 PDT

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    >I
    >suspect but do not know for sure that the same kind of techniques that
    >were used on the mag tapes (something like a very high-resolution and
    >oversampled read of the magnetic domains that was then used to reconstruct
    >the contribution of each previous write up to whatever the resolution
    >permitted) could be used on disks....
    >So do your overwrites a bunch of times, compadres.
    
    Hey, with techniques like Scanning Tunnel Electron Microscopy, you can 
    come close to reconstructing the entire write history of a magnetic 
    disk. 
    
    Of course, this isn't exactly an economical procedure...
    
    Cheers,
    
    RGF 
    
    Robert G. Ferrell, CISSP
    Information Systems Security Officer
    National Business Center
    U. S. Dept. of the Interior
    Robert_G_Ferrellat_private
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