[47648] in Cypherpunks
Re: Wipe Swap File
daemon@ATHENA.MIT.EDU (Peter Monta)
Sun Jan 21 21:54:47 1996
To: cypherpunks@toad.com
In-Reply-To: Your message of "Sat, 20 Jan 1996 11:23:22 PST."
<ad266bbe08021004727d@[205.199.118.202]>
Date: Sun, 21 Jan 1996 18:43:48 -0800
From: Peter Monta <pmonta@qualcomm.com>
Tim May writes:
> Much more expensive would be various electron microscope-based imaging
> methods to directly image the domains and extract subtle signs of past
> write cycles.
I recently took a tour of Park Scientific, the scanning-probe
microscopy people, in Sunnyvale. One of their demo-stations
showed a small portion of a hard disk (taken with an AFM
tip fitted with a small magnet to generate the force). Most
impressive. (I did look closely at the edges of the track,
but saw no sign of previous writes.)
Cheers,
Peter Monta pmonta@qualcomm.com
Qualcomm, Inc./Globalstar
