RE: Consequences of not really understanding

[SIANNON -at- VISUS -dot- JNJ -dot- com]

Damien writes:
> Here in the UK, the Navy have such faith in the technology 
> for wiping hard drives that on one job I did in the 80s 
> they paid to have the drives smashed with a large hammer 
> when the job was done :-)

Actually, IIRC, several engineering firms that work with government 
contracts here in the 'States have the same "physical wipe" policy 
regarding all equipment used for classified information -- even if the 
equipment was rented. (This tends to shake up some of the companies renting 
out equipment, since they tend to find out afterwards which assets were 
liquidated,...er, "powdered".) The reason they do this is specifically 
because they know there are ways to recover data through virtually every 
electronic "wipe" methodology. Even a physically broken (i.e., snapped in 
half) CD can be read by an enterprising individual, so if data needs to be 
deleted from removable media, it has to be removed in a more thorough 
manner (e.g., sanded off).


Shauna I.
(who sometimes wonders whether passing a large magnet or few over a drive 
several times would sufficiently interfere with such data recovery 
efforts)

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