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[REQUEST] Automatic rotation of CAPTCHA background noise

Posted: Mon Aug 27, 2007 1:23 am
by phpDummie
Would be a spam-bot killer to automatically randomly rotate, within preset parameters, the background noise on every registration.

Re: [REQUEST] Automatic rotation of CAPTCHA background noise

Posted: Mon Aug 27, 2007 5:07 pm
by Myspoonistoobig
I don't see how it would. Spambots can either filter noise with a certain accuracy or they can't. You should decide on what is the correct balance for defeating bots versus accomodating humans and use that every single time.

Re: [REQUEST] Automatic rotation of CAPTCHA background noise

Posted: Sat Sep 01, 2007 11:50 pm
by phpDummie
Myspoonistoobig wrote:...Spambots can either filter noise with a certain accuracy or they can't. ...
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