speeding up hard drive wipe
Chris Luck
chrisluck.bvhg at gmail.com
Sun Sep 27 14:07:39 UTC 2020
On 26/09/2020 20:45, Ralf Mardorf via ubuntu-users wrote:
> On Sat, 26 Sep 2020 15:07:01 -0400, Ken D'Ambrosio wrote:
>> Citation, please.
>
> There might be no proof, but it's reasonable and not just another
> idiotic conspiracy theory.
>
> Users unlikely need to worry about this:
>
> "A technique called Magnetic Force Microscopy (MFM) allows any
> moderately funded opponent to recover the last two or three
> layers of data written to disk"
<snip>
15-odd years ago I was pulling out a hard drive from an old pc just
to study it's innards and extract any re-usable parts more than for any
security issue. I unscrewed the covers, disregarding the "Fate worse
than death" stickers, to find multi-layered discs which were very easy
to pull from the spindle with a small pair of long-nosed pliers applied
at the rim.
I was intrigued by the very light weight of the discs and how easily
they could be folded in two, then four and - with a bit of help from
heavier electricians pliers - eight. "Get data off that!" - I muttered
as I threw them in the bin.
The interesting extra was a ferociously powerful magnet assembly (mind
your fingers).
I suspect that any practical recovery technique requires an intact
functional drive or at least a disc assembly that could be transferred
to a functional drive.
--
Regards,
Chris Luck
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