On Thu, 19 Jul 2012, Carmel wrote:
On Thu, 19 Jul 2012 10:15:17 +0200 (CEST)
Wojciech Puchar articulated:
1) There's a _reason_ the gov't requires hard drives with anthing
higher than 'somewhat' classified data on them to be =physically=
destroyed before leving the secure area.
no. for modern hard drives it was already proved that
dd if=/dev/zero of=/dev/disk bs=1m
is enough to make data unreadable.
for very old drives it may not
Would you be so kind as to point out the proof of that statement?
Please provide an address or location where the documentation
supporting that statement can be found. By the way, "NOT READABLE" is
not equal to "UNRECOVERABLE".
I hesitate to intervene in this dispute, but my posting "Can intelligence
agencies recover overwritten data?" at
http://www.nber.org/sys-admin/overwritten-data-gutmann.html
will iluminate this discussion.
dan feenberg
--
Carmel ?
carmel...@hotmail.com
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