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標題: About deleting file [打印本頁]

作者: myversa    時間: 2008-2-4 08:47     標題: About deleting file

This is from Mingpao's articles about Edison's case.  I am just wondering what is the 黑皮篋盛載先進的調查儀器 that can detect if the person has erased any computer files?  I thought if we do a low format and reinstall, everything will be wiped out?


昨午4時,探員掩至中環士丹利街50號eLite multimedia電腦店,要求負責人以鑰匙開閘,多名探員即急不及待打開店內多台電腦搜查。其間,探員又用一個紙箱及一個黑皮篋盛載先進的調查儀器入內,檢驗是否有人曾經刪除極重要的電腦檔案。經過近4小時搜查,探員將兩台桌面電腦主機及兩台手提電腦帶走檢驗。

作者: ACC-HE    時間: 2008-2-4 11:07

I've heard the tools they use @ FBI can detect files that has been deleted and overwritten for 8 times.

That's why the disk destroyer software rewrite them with 1 and 0's for 8 times or more to be safe...
作者: Traum    時間: 2008-2-4 11:18

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作者: pkphilip    時間: 2008-2-4 12:33

US DoD erasure standard is 35 passes with random data.

What I normally would do for work is to run a standard erasure (3 passes), then open the hard disk and smash the platter with a 25lb hammer.

Philip
作者: ACC-HE    時間: 2008-2-4 15:20

4 File Shredders to Make Deleted Data Unrecoverable
http://www.makeuseof.com/tag/fre ... iles-unrecoverable/

see comments for more file shredder recommendations
作者: pkphilip    時間: 2008-2-4 21:25

For work, we use:

Wiping the whole drive: http://dban.sourceforge.net/
Wiping a file or free-space: http://www.heidi.ie/eraser/

Philip




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