[ale] really really deleting files....

[Keith R. Watson]

At 01:34 PM 6/24/2003 -0400, you wrote:
>On Tue, 24 Jun 2003, Keith R. Watson wrote:
>
><<snip>>
> > Recoverable - 1. Your data can't be reassembled and viewed by an 
> un-authorized
> >                   party regardless of the level of effort required (The NSA
> >                   couldn't do it with unlimited funds)
> >
>
>More curious than anything else, but to beat Recoverable 1, would drilling
>a small hole in the case and filling the cavity with HF solution (the
>stuff often used to etch glass) work? Plug the hole with a polyethylene
>plug, and _anybody_ who opened the case to get at the platters would get a
>relatively nasty surprise.

I assume your talking about hydrofluoric acid. Certainly an interesting 
solution (pardon the pun). Not all substances are soluble in hydrofluoric 
acid. If the ferromagnetic coating on the platters is susceptible then it 
might do the trick. The case must be capable of containing the acid. Not to 
mention that the hard drive becomes a serious environmental contaminant at 
that point.

keith



-------------

Keith R. Watson                        GTRI/ITD
Systems Support Specialist III         Georgia Tech Research Institute
keith.watson at gtri.gatech.edu           Atlanta, GA  30332-0816
404-894-0836

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