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Re: Pentagon Reverses Order to Destroy Old Hard Drives
From: "Robert G. Ferrell" <root () rgfsparc cr usgs gov>
Date: Thu, 14 Jun 2001 12:09:01 -0500 (CDT)

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 

Of course, this isn't exactly an economical procedure...



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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