Mailinglist Archive: opensuse (4054 mails)
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RE: [SLE] need to make sure data is gone ...
- From: "Allyn, Mark A" <mark.a.allyn@xxxxxxxxx>
- Date: Thu, 19 Jan 2006 13:38:50 -0800
- Message-id: <75EC4D5486CAC247B84AAAA6F96AA5580687FF8F@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
True, I agree that the only way to ensure 0% data recovery is melting
the
drives . . . .
How many people have a scanning electron microscope and would be willing
to
use it for this purpose?
At a computer recycling facility I am familiar with, they use
the badblock application and overwrite the entire drive about
five to six times with random data.
Mark
-----Original Message-----
From: Mark A. Taff [mailto:marktaff@xxxxxxxxxxx]
Sent: Thursday, January 19, 2006 1:29 PM
To: suse-linux-e@xxxxxxxx
Subject: Re: [SLE] need to make sure data is gone ...
On Thursday 19 January 2006 10:40, Deep Thinker wrote:
> Hello all,
>
> I am in the process of moving and I want to get rid of (sell, donate,
give
> away) all of my old spare parts and self made boxes. I have about 20
hard
> drives of various sizes and I need to get rid of them as well. My
question
> is, how can I make absolutely sure that all the data has been erased
from
> those drives before I give them away.
>
> The drives all came from clients that I did upgrades for and they did
not
> want to keep the old systems. I have no idea which drives have
sensitive
> information on them and which ones do not.
>
> Thanks for any suggestions in advance.
>
> --
> d33p th1nk3r
They only way to make 100% sure the data is unrecoverable is to
physically
melt the aluminum platters, either in a furnace, or perhaps with an
oxy-acetylene torch.
The reason for this is that regardless of how to rewrite BS data to the
drive,
old copies of the data can be recovered using a scanning tunneling
microscope
from the magnetic molecules at the periphery of each bit.
To eliminate this, you have to completely destroy the order of the disk,
and
that requires changing the physical state of the metal in the disk
platters.
If you have a mechanic friend, I suggest you grab some beer, and make a
party
of torching to drives!
Mark
--
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the
drives . . . .
How many people have a scanning electron microscope and would be willing
to
use it for this purpose?
At a computer recycling facility I am familiar with, they use
the badblock application and overwrite the entire drive about
five to six times with random data.
Mark
-----Original Message-----
From: Mark A. Taff [mailto:marktaff@xxxxxxxxxxx]
Sent: Thursday, January 19, 2006 1:29 PM
To: suse-linux-e@xxxxxxxx
Subject: Re: [SLE] need to make sure data is gone ...
On Thursday 19 January 2006 10:40, Deep Thinker wrote:
> Hello all,
>
> I am in the process of moving and I want to get rid of (sell, donate,
give
> away) all of my old spare parts and self made boxes. I have about 20
hard
> drives of various sizes and I need to get rid of them as well. My
question
> is, how can I make absolutely sure that all the data has been erased
from
> those drives before I give them away.
>
> The drives all came from clients that I did upgrades for and they did
not
> want to keep the old systems. I have no idea which drives have
sensitive
> information on them and which ones do not.
>
> Thanks for any suggestions in advance.
>
> --
> d33p th1nk3r
They only way to make 100% sure the data is unrecoverable is to
physically
melt the aluminum platters, either in a furnace, or perhaps with an
oxy-acetylene torch.
The reason for this is that regardless of how to rewrite BS data to the
drive,
old copies of the data can be recovered using a scanning tunneling
microscope
from the magnetic molecules at the periphery of each bit.
To eliminate this, you have to completely destroy the order of the disk,
and
that requires changing the physical state of the metal in the disk
platters.
If you have a mechanic friend, I suggest you grab some beer, and make a
party
of torching to drives!
Mark
--
Check the headers for your unsubscription address
For additional commands send e-mail to suse-linux-e-help@xxxxxxxx
Also check the archives at http://lists.suse.com
Please read the FAQs: suse-linux-e-faq@xxxxxxxx
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