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Article #214

Re: Tape back up - secure erase.

#214
From: Chris Carter
Date: Thu, 29 Jan 1998 00:00
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> My question is this : I am using the argument that even if I wipe these
> cartridges there is no way that I can be sure that it is impossible for any
> data to be recovered off of them.
> 
> Is there any way that this will stand up in court. Personally I would prefer
> to crush the cassettes and shred the tapes to be sure but I could end up
> being charged for destroying the stores property.
> 
> Thanks in advance.
> 
> Steve Coath

I don't know what your legal position would be, but I would erase the
tapes by using (buying or borrowing) a demagnetiser such as is used to
wipe reel-to-reel tapes. A second or two or exposure to that should
ensure your data is all but impossible to recover. Alternatively, and if
you can still read the tapes on a machine, use a utility such as BCWipe
(freeware) or a Norton Utilities derivative to perform multiple
overwrites of the data with a random bit pattern.
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From: Chris Carter <cjc@ast.cam.ac.uk>
Subject: Re: Tape back up - secure erase.
Date: 1998/01/29
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