Security Basics mailing list archives

Re: Interesting One


From: "Pablo Gietz" <pablo.gietz () nuevobersa com ar>
Date: Fri, 1 Nov 2002 16:12:32 -0300

I think that if any data would be recovered after rewritten 30 times, we can
expect a disk of 20GB have 600GB of data to be recovered. Also we need to
know the correct nth version of the FAT in order to recover clusters in the
right order. I think this is really difficult to do.

Pablo A. C. Gietz
Jefe de Seguridad Informática
Nuevo Banco de Entre Ríos S.A.
Te.: 0343 - 4201351
----- Original Message -----
From: "Dave Adams" <dadams () johncrowley co uk>
To: <security-basics () security-focus com>
Sent: Monday, October 28, 2002 7:06 PM
Subject: Interesting One


Greetings Folks,

I had an interesting conversation today with someone from FAST
(Federation
Against Software Theft) They pretend not to be a snitch wing of the BSA.
Anyway, to get to the point, the guy that came to see me said that their
forensics guys could read data off a hard drive that had been written
over
up to thirty times. I find this very hard to believe and told him I
thought
he was mistaken but the guy was adamant that it could be done. My
question
is, does anyone have any views on this, or, can anyone point me to a
source
of information where I can get the facts on exactly how much data can be
retrieved off a hard drive and under what conditions etc etc.

Thanks

Dave Adams



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