Security Basics mailing list archives

Re: Optical media destruction Was: Hard drives v. CF/Smart media/etc.


From: Alloishus BeauMains <all0i5hu5 () gmail com>
Date: Tue, 25 Oct 2005 18:40:40 -0500

Fire.......just melt it.

However, shredding a CD will pretty much do the trick for all but the
most dedicated intents and purposes. I almost doubt even the
government would go that far to try and resurrect a CD that has been
through a shredder. Not only would you have to piece together the CD,
and then read the information off of it. You would problablythen need
to unscramble the pieces somehow. It would be a super act to actually
get the pieces to be correctly aligned, especially if the CD was
shredded fine enough. As far as I know, there really isn't an
algorithm out there that will unscramble something that drastically
fubarred. So, the time you would have to take in order to get it right
by hand would be enormous.

On 10/24/05, Alexander Klimov <alserkli () inbox ru> wrote:
On Sat, 22 Oct 2005, Herman Frederick Ebeling, Jr. wrote:
From: Brian Loe
:  Better than optical? Surely you've by now nuked a CD - in my experience,
: between that and breaking one, the data is pretty much toast.
:
: If you break a CD, do you think you could tape it together and get it to
: spin up?!

This is not the right question :-) If the CD would not spin up it
`will stop your kid sister from reading your files' but it will *not*
`stop major governments from reading your files' -- they are quite
likely to employ device with slowly moved laser instead of spinning
the media.

Can't say that I have, YET.  But *IF* I really wanted to "kill" a CD
I'd nuke it, take it outside to the sidewalk drop it put my foot on
it and do the "twist" on top of it.  Flip it over and repeat, THEN
break it up into a "gazillion" pieces.

It is quite possible to resurrect a lot of paper from `gazillion'
pieces:  http://en.wikipedia.org/wiki/Paper_shredder#Unshredding
So, I guess, it is possible to combine a single CD, and once it is
combined you can use the above (fictitious?) device. Of course, this
device can be used for finding matches in the first place.

--
Regards,
ASK



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