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Secure Delete a whole drive?
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Senior User
Join Date: Apr 2000
Location: Woodridge, IL
Status:
Offline
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I need to really clean a drive I'm about to sell. Is there any way to run Panther's secure delete over the whole disk, short of filling the disk with a huge temp file and then running it? Also, any way to enable the "35-pass" delete seen in the betas?
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Posting Junkie
Join Date: Nov 2001
Location: Retired.
Status:
Offline
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Might as well zero the drive out....won't that work for your needs?
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Mac Elite
Join Date: Sep 2000
Location: Canada
Status:
Offline
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Mac Elite
Join Date: Oct 2001
Location: Umbrella Research Center
Status:
Offline
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zero all the data 35 times... tho not even that will do it...
you would have to zero, write ones, write random
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Professional Poster
Join Date: Sep 2002
Location: New York, NY
Status:
Offline
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There is an 8-way random write format option in Panther's Disk Utility.
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Vandelay Industries
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Senior User
Join Date: Apr 2000
Location: Woodridge, IL
Status:
Offline
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Originally posted by Art Vandelay:
There is an 8-way random write format option in Panther's Disk Utility.
Aha, that's what I need! Personally, I don't trust just writing zeros. After all, it had backups of my tax returns, account numbers, Quicken, etc. But if there's a random-overwrite built into Panther's Disk Utility then I'm golden. 
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Mac Elite
Join Date: Jan 2001
Status:
Offline
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Maybe you do not understand what write out all zeros means then.
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Senior User
Join Date: Apr 2000
Location: Woodridge, IL
Status:
Offline
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Originally posted by timmerk:
Maybe you do not understand what write out all zeros means then.
Well, that's a funny thing to say to a computer scientist at IBM. 
Maybe you don't understand that technology exists for retrieving data even after it has been zeroed out. What's most amazing is data can be retrieved (if someone has equipment and is determined) even after overwriting the original data. My understanding is the government requires sensitive files be overwritten multiple times with random data (how many times, I do not know). Interesting hint on this topic today at Mac OS X Hints.
Look, do I think anyone will *really* go to such lengths on this drive? No. However, if there's an easy way to overwrite it multiple times then I'll do it, simply to know it;s been done. Such a method is provided by Panther's 8-way random overwrite, so I'm happy.
(Last edited by diamondsw; Oct 29, 2003 at 11:24 AM.
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