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SubjectRe: secure erasure of files?
---------  Received message begins Here  ---------

> >I would strongly encourage somebody with fluent Norsk/English skills
> >to do a translation and post it to the list.
> I'll do my very best ...
> (translated by Roy Sigurd Karlsbakk - please don't spam me in case of bad
> speling :)
> With permission from the leader of Research and Deveopment department, I
> quote his complete answer:
> I'll try to answer your questions:
> The short answer is: No. It is not possible to read data that are (really)
> physically overwritten.


In the non-destructive read case - true.

HOWEVER: forensic specialists can:
or (same paper)

> Addition:
> Still, it should be said that this is being argued upon between the
> 'wise' ones. This is - there are people that mean it is possible
> to read/recover overwritten data. But we have, as mentioned above,
> not found any scientific documentation or decriptions of how this
> can be done.

See the paper referenced above. There may be more recent documents, but
this one is quite clear on the limitations of erasure using the standard
drive electronics.

Jesse I Pollard, II

Any opinions expressed are solely my own.
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