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>Itsik Rubin wrote in response to a fingerprint bio-metric
>security device:
>
>> How do you get around the problem of chopping one's finger and
>>introducing it to the machine[AFIM]?
>
>When a finger is cut off the blood and other fluids drain rather
>quickly. This causes the finger to become deformed. This combined
>with the effects of rigamortous changes the fingerprint enough to
>become inoperable. The machine also can be fitted with an infa-red, heat
>sensor, or a sensor to pick up the electric signals in a live finger for
>further verification.
>
>This is described at the following web site:
> www.comtech-dwm.com
>
>Tyler Whitaker
>Senior Internet Engineer
>Spire Technologies
>ttw @
spire .
com
Thats true but micro-surgery is so far advanced that a severed finger can
be re-attached and re-grow provided it has not been detached too long.
If the value to a thief of whatever is protected is enough I guess
bio-technology may soon be at a stage where a detached finger could be
attached to some sort of "mechanical body" which would provide pulse and
nerve signals long enough to fool the detector.
As a child my dad always told me locks only keep out honest thiefs. I have
found this a usefull anology when dealing with computer security.
Dave Wade
dw @
sss .
co .
uk
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