Re: Pentagon Reverses Order to Destroy Old Hard Drives

["Robert G. Ferrell" <root () rgfsparc cr usgs gov>]

> 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_Ferrell () nbc gov
========================================
 Who goeth without humor goeth unarmed.
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