sounds like the wipe tool on that Mac was crap and just did a delete. Drive recovery is $$$$$$$$$!!!!<br>The last one I ran for a client was $1/MB. <br><br><div class="gmail_quote">On Fri, Apr 16, 2010 at 12:24 PM, scott boss <span dir="ltr"><<a href="mailto:scott@sboss.net">scott@sboss.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">A friend of mines wife wiped her mac laptop HD. Not the govt 35pass<br>
but a single pass wipe. He sent it off to one of those disk recovery<br>
companies and he got 99% of the disk back and the HD was much larger<br>
than 20g. She had over 20g of photos alone.<br>
<br>
Ymwv!!<br>
<br>
Sent from my mobile...<br>
<div><div></div><div class="h5"><br>
On Apr 16, 2010, at 12:04, Brian Pitts <<a href="mailto:brian@polibyte.com">brian@polibyte.com</a>> wrote:<br>
<br>
> On 04/16/2010 11:31 AM, Greg Freemyer wrote:<br>
>><br>
>> NIST has a sanitation paper that says disk drives of 20GB or larger<br>
>> capacity are not recoverable even via laboratory means after a single<br>
>> wipe with zero's.<br>
>><br>
>> So your just wasting cpu cycles using /dev/urandom. Just use<br>
>> /dev/zero. And just do it once.<br>
><br>
> The link you shared to a discussion of that paper a while back is<br>
> dead.<br>
> Do you know of any more sources? I'd really like to have something to<br>
> wave at the "you must wipe it 27 times" people.<br>
><br>
>> Also, ext2/3 reserves x% of the drive for root, so if your doing the<br>
>> above as a normal user, your missing that x%. I think x% is 5%,<br>
>> but I<br>
>> don't recall for sure. And 5% of 1TB is 50GB, so it is a big deal.<br>
><br>
> At Free IT Athens, we run sfill and sswap from the secure-delete suite<br>
> of tools as a post-install action to securely erase all unused space<br>
> on<br>
> a system being refurbished. sfill sipes the disk space and inode<br>
> space,<br>
> and sswap takes care of the swap partition.<br>
><br>
> --<br>
> All the best,<br>
> Brian Pitts<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>-- <br>James P. Kinney III<br>Actively in pursuit of Life, Liberty and Happiness <br><br>