Hi Sieghard,
As with most bio-scanners, Fingerprint, Retinal, facial or Voice, they can
be very, very finicky, and therefore subject to error.
As your post identified, scars and other skin deformities may interfere with
the scanners ability to detect the print correctly. I actually think that
it's not a matter of it "may" effect it, I think it's a matter of it "will"
effect it, and become useless.
As we belong to a population that uses it's hands more than the regular
population, the likelihood we will develop callouses on our fingertips is
pretty high, and callouses are, for wont of a better term, scarring which
interferes with fingerprints in a big way.
I haven't always been blind, and I've been privy to fingerprints that were
calloused, and where the callouses were located, there were, what looked
like, smudges in place of the etchings of the print, so, where identifying
swirls would have been, were just smudges.
I suppose that one could take better care of their fingers, but, as I said
in a previous post, that pesky life tends to get in the way, and callouses
are pretty much a sure thing, right along with taxes and death. Smile.
In any case, at the end of the day, bio-scanners are in actuality not a good
way of securing anything, as they are not infallible. About the only
bio-scanners that are infallible are plasma and DNA scanners, as those are
the only two things about the human body that do not change, and I don't
see Apple coming up with blood scanners anytime soon. Smiles.
P.S.
If you want a perfect example of how bad bio-scanners are, just look at how
many people have problems using Siri because Siri isn't understanding what
they're saying? Grins.
Victor Gouveia
Vice-President
Training Coordinator
VIP Tech
Phone: 1 (888) 737-1115
Fax: 1 (888) 737-1116
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Limiting Disabilities with Limitless Possibilities
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