'secure' deletion
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HansV
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viking33
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Re: 'secure' deletion
Good news. It always feels good when you finally gets these things working OK or out of the way. Whew!
BOB
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If I agreed with you we'd both be wrong.
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If I agreed with you we'd both be wrong.
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PJ_in_FL
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Re: 'secure' deletion
Not to rain on the parade, but, if disassembled, the individual cards/chips still retain the data. How easy it is to read may be another story, but if you have anything classified or damaging, I'd choose the hammer and screwdriver method of "secure wiping" rather than to trust the results of your tests show it's gone for good.
All it takes is a tiny little short courtesy of RoHs' insistance of using pure tin finish (google NASA and tin whiskers for a horror story of politics over science or just spend a scary night browsing this page) to keep a control signal grounded and prevent the system it's attached to from using that signal elsewhere. Disassembly, wash in isopropal alcohol (good old IPA) and vacuum dry, it's right as rain and all your secrets are ours!
All it takes is a tiny little short courtesy of RoHs' insistance of using pure tin finish (google NASA and tin whiskers for a horror story of politics over science or just spend a scary night browsing this page) to keep a control signal grounded and prevent the system it's attached to from using that signal elsewhere. Disassembly, wash in isopropal alcohol (good old IPA) and vacuum dry, it's right as rain and all your secrets are ours!
PJ in (usually sunny) FL
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StuartR
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Re: 'secure' deletion
Nice try Ken, but I suspect that enabling Bitlocker requires some free space on the drive.
ALSO while we are on the topic. If you have VERY high confidentiality requirements then you can't over-write a normal hard drive either. These have a number of blocks that are not used. When a block seems to have errors the drive controller can unmap it and replace it with one of the spares. This could leave some of your sensitive data in a now unmapped block.
That is why people use Hard Drive Shredders
ALSO while we are on the topic. If you have VERY high confidentiality requirements then you can't over-write a normal hard drive either. These have a number of blocks that are not used. When a block seems to have errors the drive controller can unmap it and replace it with one of the spares. This could leave some of your sensitive data in a now unmapped block.
That is why people use Hard Drive Shredders
StuartR
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Leif
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Re: 'secure' deletion
Yeh, but what happens if someone presses this button, huh?StuartR wrote:That is why people use Hard Drive Shredders
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Leif
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Argus
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Re: 'secure' deletion
If you press it long enough you will end up with a fresh installation of Windows 95.
Byelingual When you speak two languages but start losing vocabulary in both of them.
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HansV
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Leif
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StuartR
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viking33
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Re: 'secure' deletion
Ken,
Correct me if I'm wrong but I didn't really get the impression that you have or had some top security or damaging personal data on your Drive, that required this amount of "secure wiping?" If you DO, then it's best to take the HD platter out and do a number on it with hammer or chisel and then scatter the small pieces in remote areas of some wilderness.
Chalk up the cost of the old drive to business cost overruns. Don't worry, be happy!
Correct me if I'm wrong but I didn't really get the impression that you have or had some top security or damaging personal data on your Drive, that required this amount of "secure wiping?" If you DO, then it's best to take the HD platter out and do a number on it with hammer or chisel and then scatter the small pieces in remote areas of some wilderness.
Chalk up the cost of the old drive to business cost overruns. Don't worry, be happy!
BOB
______________________________________
If I agreed with you we'd both be wrong.
______________________________________
If I agreed with you we'd both be wrong.
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StuartR
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Re: 'secure' deletion
I recently disposed of an old, faulty, laptop that had an SSD disk. I took the disk out and broke all of its memory chips with a pair of pliers, it only took about 5 minutes
StuartR
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stuck
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Re: 'secure' deletion
A replacement SSD has arrived. The label on this one says it's a Samsung MZ-7. It probably came from a HP machine as the label also says 'HP P/N' followed by a long number on it.
this one lasts longer than the original.
Ken
this one lasts longer than the original.Ken