Quote:
Originally Posted by RegDCP
IMO the only safe way is having a captcha protected secure contact form.
Reg
|
Unfortunately, CAPTCHA is not 100% reliable.
By employing OCR, and building a database of observed CAPTCHA images and the corresponding proper characters, there have been bots available for some time now that serve as effective CAPTCHA decoders.
That is why some sites frequently change their library of CAPTCHA character strings; needless to say, these changes occur just about the time that human users have trained themselves to be able to reliably read them, leading to yet another round of pissed-off users!