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Re: 'Shredding' a hard disk



At 10:38 AM 6/13/2002 -0400, Ian D. Stewart wrote:
On 2002.06.13 09:16 Jan Johansson wrote:
> I remember reading about a data recovery team that recovered
> files after
> the data had supposedly been removed with a 'dd' command like above.
www.ibas.no they claim to be able to see under 3 layers of overwrites.
And since they are a public contractor.. wonder what the not-so-public
people can do.

When I was in the (US) Navy, a hard drive that contained classified data wasn't considered clean until after 7 swipes.

There are places that only consider a smoldering pile of slag to be secure again... :)



Ian


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