I have a number of DVDs containing
computer backup information of a
sensitive nature. I plan to throw away
the older ones, but first I want to
render the data on them irretrievable.
Can anyone here recommend a quick,
cheap, easy way to do that? I've heard
that drilling 2 or 3 1/4" holes in them
does the trick, but that is just a rumor
to me. What about placing them, one at
a time, in a vice, half clamped tight
and the other half then struck hard with
a hammer - hoping to break it in half?
Suggestions and experience reports
Former slayer of dragons; practice now
My new shredder handles CDs, but before that I used a sharpie to scribble
all over the CD. Remember that CDs aren't like old records, they are
recorded from the inside out, so be sure to mark over the center area of the
CD. scratching with a nail of knife would add an extra level of security..
With my new shredder, I still scribble on them before shredding - paranoid
maybe, but rather be sure I don't lose my personal data!
Yes, the recording is written beneath the surface. Damaging the
surface (with a sharpie or sandpaper) does not destroy the data;
it just makes it hard/impossible to read it. However, in theory,
at least, the surface could be reground and polished such that
data recovery would be possible.
So, I scratch them up with a utility knife -- deeply enough
to reach the recording surface, and then cut 'em up with
For a larger quantity, I'd probably melt them down using a
camping stove, BBQ or blow torch. I would do this outdoors
to avoid the risk of fumes etc.
| Malcolm Hoar "The more I practice, the luckier I get". |
I'd bet *on* the NSA or other similarly equipped groups being able to
get data off of your CD/DVD confetti. Granted the data at the cut points
is unlikely to be recoverable, but given the data density of the media,
each piece of confetti would probably yield a sizable amount of data in
their hands. If you need true security, you need to totally destroy the
data layer, probably via chemical treatment of the confetti bits, or
incineration of the remains.
My crosscut shredder's output gets mixed into 2 bags, and some of it
gets thrown in with the kitchen garbage each week. You'd have to not
only be willing to paw through our raw chicken guts, but do so for
several weeks in a row to get most of a given document or disc. If
you're that interested, have at it, I say...
Nah- they degauss the whole thing with an electromagnet that would make
a scrap yard jealous, and then throw the whole damn thing in a chipper
mill. No, I'm not joking. Yes, I do work for them.
No marker or shredder required, just put thumb on one edge, fingers
on the other and squeeze. It will bend like a taco, and then "explode"
into a hundred shards., and split into 2 separate layers with the
"aluminum foil" layer flying in the wind.
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