Ed Skinner wrote:

>On Thursday 13 January 2005 04:25, mike hoy wrote:
>  
>
>>If somebody wanted to completely destroy a harddrive or flash drive so
>>that no data whatsoever could ever be extracted from it how would they
>>go about doing that?
>>    
>>
>
>Open it and then incinerate the media at a high temperature. For rotating 
>magnetic media, the high temperature does several non-reversable things. 
>First, it causes the oxide to oxidise much, much more (hence the need to 
>"open it" before burning). Secondly, the platter material (metal or glass) 
>will deform. And thirdly, and residual magnetism in the platter material is 
>significantly lessened (because the high heat enables the individual atoms to 
>alter their orientation).
>For solid-state media (e.g.., compact flash), the material is oxidised (and 
>undergoes other chemical changes in exposure to the open air) and physically 
>deformed.
>For either type, exposing the media to a blowtorch should be sufficient.
>
>Too bad neither Ben Avery nor the Scottsdale Gun Club permit the use of 
>anything other than paper targets. A couple of .45-sized holes would do 
>pretty good, too.
>  
>
Bravo BRAVO!

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