How To Read A Smashed Hard Drive

Here is why you're a fucking moron if you think smashing your hard drive is
a good answer to protecting your data from someone determined enough to re
ad it.
You're also a fucking moron if you believe iggy is some kind a computer exp
ert.
formatting link

"Yes, physically destroying a hard drive renders your device and the data o
n it unusable. But with enough motivation and the right equipment?and the
F.B.I. has both?some of your data can be recovered. Dan Kaminsky, chief
scientist of security firm DKH, says 100 percent physical data destruction
is nearly impossible. The only method that comes close is overwriting the d
isk.
Reply to
jon_banquer
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Here is why you're a fucking moron if you think smashing your hard drive is a good answer to protecting your data from someone determined enough to read it.
You're also a fucking moron if you believe iggy is some kind a computer expert.
formatting link

"Yes, physically destroying a hard drive renders your device and the data on it unusable. But with enough motivation and the right
Dan Kaminsky, chief scientist of security firm DKH, says 100 percent physical data destruction is nearly impossible. The only method that comes close is overwriting the disk. === with acetylene.
Reply to
Jim Wilkins
An aluminum foundry will fershure wipe that data ... Sweejesus Jon , if the disc is physically destroyed the drive is unreadable .
Reply to
Terry Coombs
Just take the disk off the drive - looks like a Doctors reflector on his head. Use a hammer and do a dance all around
Scratch it with a awl or other nasty. Put it in a fire. Melt it down.
Lots of ways to take a disk apart.
Overwriting it won't always erase. We used to run 10 patterns to quality a disk and afterwards we had to format the disk.
Martin
Reply to
Martin Eastburn
Martin Eastburn fired this volley in news:x01Fu.46513$ snipped-for-privacy@en-nntp-03.dc.easynews.com:
Low-level formatting will. Always. Martin, actually, that was a silly example.
There's no reason why a drive with the defective media locations already mapped would ever need formatting after a checkerboard test.
Perhaps the whole reason for your 10-pattern test was to identify the defects, then to format with a new defect map.???
On some drives, rather than a stored defect map, defective sectors are 'jumped' over via a linkage table built right into the individual sector headers. Those sorts MUST be formatted in a way to reflect the bad spots on the medium.
LLoyd
Reply to
Lloyd E. Sponenburgh
This describes the process:
formatting link

Initially bad sectors are recorded in the P-List and skipped as the sectors are sequentially numbered. Bad sectors that appear after the sector addresses have been written go into the G-list so that a seek to them is redirected to a spare sector located elsewhere, which slows down disk access time. The operating system can also link bad sectors into a dummy file. jsw
Reply to
Jim Wilkins
nothing of any consequence
fuck off and die
Reply to
Terry Coombs
Exactly. I wish people would all just plonk him and forget him.
Reply to
Larry Jaques
I did just that... last night.
Erik
Reply to
Erik
He's back in the bozobin , this is the first time he's posted since I wiped this comp and reinstalled the OS . I don't think he likes me very much ...
Reply to
Terry Coombs
"Terry Coombs" fired this volley in news:nAgFu.342466$ snipped-for-privacy@fx19.iad:
Terry, he hates everyone, including himself. Maybe even especially himself.
In cattle country, we have a name for folks who deliberately attack everyone they contact -- "No longer a problem."
If he had even a scrap of human decency, he'd commit suicide. The world would be better for it; and even he would be better for it.
Lloyd
Reply to
Lloyd E. Sponenburgh
jon_banquer fired this volley in news:a9ed9ce7-a90b- snipped-for-privacy@googlegroups.com:
I did. You're not even a man, much less a good one. No one has any trouble keeping you down... all anyone has to do is find is disagree with you, and you go flying out on another mental paroxysm. Some day (hopefully soon) you'll have a stroke or put a bullet through your brain, or someone at a trade show will just kill your imbalanced ass.
Lloyd
Reply to
Lloyd E. Sponenburgh
I've formatted hard drives since they were 2 megabyte on a double sided 12" hard disk. Have used a 36" vertically mounted hard disk that creates a gyroscope effect when running. They - the 2Meg DEC and DG disks required many pass testing and formatting to erase. Yet when security was had, the disk was cut. The testing mapped bad blocks using many patterns to improve testing.
I'm talking Secret to top secret grade company and military disks.
Security took the Military disks (they were formatted different from civi types ) and Security (aka police) destroyed them their way.
They had fun - fire, rifle, pistol. Some just bent the disk.
So my 'silly example' is factual and you have a short experience to say such.
Martin
Reply to
Martin Eastburn
Actually -- thermal variations may cause the heads to be offset a fraction of a track width from one time to the other, and with the right tools (and a disassembled drive) it is possible to recover data from the fringes like that. The multiple patterns are to both increase the chances of overwriting any given pattern, and a chance to have different track offsets be used to be sure. At a minimum, alternating 0xAAAA and 0x5555 patterns result in each bit position being written as a one and a zero. Other patterns might make it more difficult to recover from fringe data left from the first two basic patterns.
More likely to be sure that the fringes of the tracks were fully overwritten. Start off with the drive cool, and let the heads drift as it heats up.
A real pain in some cases.
Enjoy, DoN.
Reply to
DoN. Nichols
Martin Eastburn fired this volley in news:TclFu.42818$ snipped-for-privacy@en-nntp-01.dc.easynews.com:
What was silly about your example is that the drive had to already have been formatted properly in order to write to all sectors.
You are aware of what 'formatting' is; yes? (I don't mean in some nebulous 'generic' sense. What does it DO? Do you know?)
What, exactly, does your example of MPs burning/shooting a disk to destroy it have to do with the _necessity_ of re-writing three times then formatting in order to erase one?
Now it's a non sequitor example -- and getting sillier by the minute.
LLoyd
Reply to
Lloyd E. Sponenburgh
formatting link

formatting link

formatting link

Reply to
Jim Wilkins
"Jim Wilkins" fired this volley in news:lc5peu$o8l $ snipped-for-privacy@dont-email.me:
Yep, I'd forgotten about the 'sidebars'. There are some drives that pre- erase the sides before re-writing the data track... but not all.
Lloyd
Reply to
Lloyd E. Sponenburgh
"Lloyd E. Sponenburgh" wrote in news:XnsA2C1CDC95340Elloydspmindspringcom@216.168.3.70:
Just put Jonny Bonkers in your killfile, and forget about him. The one thing that a troll simply cannot abide is to be ignored. Don't read his posts, don't respond to his posts, nothing. Act as though he does not exist.
Reply to
Doug Miller

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