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Re: Captcha images

for

From: Patrick H. Lauke
Date: Dec 1, 2015 1:39PM

On 01/12/2015 19:43, rjaquiss wrote:
> I have seen CAPTCHAs that use math questions or simple logic questions
> such as, "What is larger, a dog or a horse?"

Which, depending on context (or lack thereof) may cause issues for
non-native speakers, users with cognitive disabilities, etc.

In many cases, it's best to go back to WHY those CAPTCHAs are being used
and find less intrusive alternatives. Is it to avoid a flood of faked
subscriptions to a service? In that case, maybe limit the number of
allowed subscriptions for a particular IP address/range, add a hidden
(non-focusable and aria-hidden) text field in the form and make sure
that it's not filled in by some bot, etc.

P
--
Patrick H. Lauke

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