Comments on: The myth of the Gutmann method http://vocaro.com/trevor/blog/2006/09/18/the-myth-of-the-gutmann-method/ Random thoughts, humor, and helpful tips Thu, 02 Feb 2012 00:31:36 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Cex http://vocaro.com/trevor/blog/2006/09/18/the-myth-of-the-gutmann-method/comment-page-1/#comment-57526 Cex Tue, 12 Jul 2011 22:44:37 +0000 http://www.vocaro.com/trevor/blog/2006/07/18/the-myth-of-the-gutmann-method/#comment-57526 Hi Trevor, yes finally Government can still recovery completely overwritten data, by the pattern used for encoding data over the disk ( 2 or 3 or 4 ), they can go throught 7 - 11 levels of overwriting, i usually use "randomZero + UsArmy 3 pass + Gutmann + Schneier + randomZero ", and also in that case with a micromagnetoScope they can recovery ( it can take 1 month for 100 gb ) so i think its ok. Hi Trevor, yes finally Government can still recovery completely overwritten data, by the pattern used for encoding data over the disk ( 2 or 3 or 4 ), they can go throught 7 – 11 levels of overwriting, i usually use “randomZero + UsArmy 3 pass + Gutmann + Schneier + randomZero “, and also in that case with a micromagnetoScope they can recovery ( it can take 1 month for 100 gb ) so i think its ok.

]]> By: Trevor http://vocaro.com/trevor/blog/2006/09/18/the-myth-of-the-gutmann-method/comment-page-1/#comment-49289 Trevor Tue, 10 May 2011 15:17:55 +0000 http://www.vocaro.com/trevor/blog/2006/07/18/the-myth-of-the-gutmann-method/#comment-49289 <blockquote>But data erased this way can still be recovered.</blockquote> Please explain your method for recovering data that has been completely overwritten.

But data erased this way can still be recovered.

Please explain your method for recovering data that has been completely overwritten.

]]> By: Eridger http://vocaro.com/trevor/blog/2006/09/18/the-myth-of-the-gutmann-method/comment-page-1/#comment-49255 Eridger Tue, 10 May 2011 08:57:45 +0000 http://www.vocaro.com/trevor/blog/2006/07/18/the-myth-of-the-gutmann-method/#comment-49255 Zero-byte formatting is absolutely not totally safe. Safer than simply formatting? Yes. But data erased this way can still be recovered. The best way to securely erase data short of physically destroying the medium that contains it is to run several random-byte passes on the data or disk. Just because the Gutmann method isn't the best way to securely delete data doesn't mean all secure deletion methods are pointless. Zero-byte formatting is absolutely not totally safe. Safer than simply formatting? Yes. But data erased this way can still be recovered. The best way to securely erase data short of physically destroying the medium that contains it is to run several random-byte passes on the data or disk.

Just because the Gutmann method isn’t the best way to securely delete data doesn’t mean all secure deletion methods are pointless.

]]> By: Jarrod1937 http://vocaro.com/trevor/blog/2006/09/18/the-myth-of-the-gutmann-method/comment-page-1/#comment-43130 Jarrod1937 Fri, 25 Mar 2011 12:55:55 +0000 http://www.vocaro.com/trevor/blog/2006/07/18/the-myth-of-the-gutmann-method/#comment-43130 You got that "a quick zeroing out of the data is sufficient" from that? It is true, the 35 overwrite passes are quick often superfluous (read, not needed, but is far from not having any effect), but zeroing out is in fact less effective than a few passes of pseudo random data. I'd still opt for a 7 pass erasal algorithm over simply zeroing out the drive. You got that “a quick zeroing out of the data is sufficient” from that? It is true, the 35 overwrite passes are quick often superfluous (read, not needed, but is far from not having any effect), but zeroing out is in fact less effective than a few passes of pseudo random data. I’d still opt for a 7 pass erasal algorithm over simply zeroing out the drive.

]]> By: Cadillac http://vocaro.com/trevor/blog/2006/09/18/the-myth-of-the-gutmann-method/comment-page-1/#comment-26414 Cadillac Sun, 12 Sep 2010 17:26:31 +0000 http://www.vocaro.com/trevor/blog/2006/07/18/the-myth-of-the-gutmann-method/#comment-26414 Unless that's what the Government wants you to think! Unless that’s what the Government wants you to think!

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