Also, aside from the more obvious problems, most capucha's can be
defeated pretty easily if you actually want to devote some cpu cycles to
it. They really only protect from really basic scripting attacks.
-- Gregory
Mike Little wrote:
It is usually not usability but *accessibility* which becomes a
problem with captchas.
That is, if the capcha is an image based one, then people with vision
problems, including but not limited to the blind, cannot use the
system.
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