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{"id":1701,"date":"2009-09-17T06:00:15","date_gmt":"2009-09-17T11:00:15","guid":{"rendered":"http:\/\/www.robohara.com\/?p=1701"},"modified":"2009-09-17T06:00:15","modified_gmt":"2009-09-17T11:00:15","slug":"dariks-boot-and-nuke","status":"publish","type":"post","link":"https:\/\/www.robohara.com\/?p=1701","title":{"rendered":"Darik’s Boot and Nuke"},"content":{"rendered":"

Yesterday, at work, I said goodbye to an old friend. <\/p>\n

I formatted my laptop.<\/p>\n

It’s not completely gone, not yet. Before formatting, I converted it to a virtual machine. I’ve got my Acer Aspire netbook hooked up at work and, using an external monitor, mouse, and keyboard, I’m now connected to the virtual version of my old laptop. That way I can still work while my old hard drive is wiped over the next couple of days. <\/p>\n

Couple of days? Yes, I’m doing a seven-layer DOD (Department of Defense) wipe of my laptop’s hard drive using DBAN<\/a> (Darik’s Boot and Nuke, a free program). Doing a quick format of a hard drive is kind of like tearing the table of contents out of a book; all the information’s still there, and all you did was make it a little harder to access. (Believe me, plenty of free tools can retrieve your files instantly.) A full format isn’t much better — again, there are many available tools that can recover 99% of data lost from a full format.<\/p>\n

As you may or may not know, computers store information in binary — 1’s and 0’s. The safest software method to truly wipe a drive is to not just format it, but cover the entire drive with either 1’s or 0’s. The average person or company can not retrieve information from a drive wiped using that method, because all the information has been written over. Theoretically however, it is still possible. Using forensics, it may be possible to determine how long<\/i> a 1 has been a 1 (or a 0 has been a 0). With that information, all the new 1’s could be changed back to 0’s, and your information could be retrieved. (If you’re dreaming of trying this at home, don’t bother — you’ll need some high tech equipment and software worth tens of thousands of dollars.) The DOD standard, therefore, is (or at least was) three passes of wiping — that is, covering a drive with 1’s, then 0’s, then 1’s again. The next step up is a seven-layer wipe, which is what I’m doing to my laptop. Why? Because I can, because I’m into security, and because it’s not every day you can take a working laptop, set it aside for several days and do things like wipe the hard drive seven times in a row to see how long it takes.<\/p>\n

By the way, as of 2007, the DOD no longer wipes their old hard drives — they shred them. <\/p>\n

<\/param><\/param><\/param><\/embed><\/object><\/p>\n

At home solutions include hammers and firearms, among other techniques.<\/p>\n","protected":false},"excerpt":{"rendered":"

Yesterday, at work, I said goodbye to an old friend. I formatted my laptop. It’s not completely gone, not yet. Before formatting, I converted it to a virtual machine. I’ve got my Acer Aspire netbook hooked up at work and, using an external monitor, mouse, and keyboard, I’m now connected to the virtual version of my old laptop. That way I can still work while my old hard drive is wiped over the next couple of days. Couple of days? Yes, I’m doing a seven-layer DOD (Department of Defense) wipe of my laptop’s hard drive using DBAN (Darik’s Boot and… (read more)<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1701","post","type-post","status-publish","format-standard","hentry","category-main"],"_links":{"self":[{"href":"https:\/\/www.robohara.com\/index.php?rest_route=\/wp\/v2\/posts\/1701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.robohara.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.robohara.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.robohara.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.robohara.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1701"}],"version-history":[{"count":0,"href":"https:\/\/www.robohara.com\/index.php?rest_route=\/wp\/v2\/posts\/1701\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.robohara.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.robohara.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.robohara.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}