[support] Captcha and spam issues

[Mutuku Ndeti]

https://drupal.org/project/spamicide

A technique I have seen recommended, but have not tried for myself, is
to create a field in each protected form that is invisible but a bot
would complete. It wouldn't bypass humans paid to bypass your antispam
measures though.



On 8 June 2013 05:23, John Summerfield <summer at js.id.au> wrote:

> On 29/05/13 01:59, Pia Oliver wrote:
> > How is this happening? I have been told that robots are not capable
> > of deciphering an image but possibly math. That's why I have changed
> > every single one to image captchas.
>
> Capcha just requires OCR capabilities, if it's important enough someone
> will do it.
>
> It also drives legitimate users away. I rarely fill in capchas.
>
> My D-Link wireless router defends itself (from internal users, why? I
> ask) using a capcha. It's validated in javascript. I nearly returned it
> for a refund, but first tried making an HTA (on Windows) based on the
> login form ant that works fine. So I figure that some capcha might by
> bypassed by anyone who knows what data to post to a form. For example,
> maybe I can configure a webform on testserver.example.com (it exists,
> it's on my LAN) to post the login data to my bank. It's not a lot
> different from what anonymous proxy servers do.
>
> A technique I have seen recommended, but have not tried for myself, is
> to create a field in each protected form that is invisible but a bot
> would complete. It wouldn't bypass humans paid to bypass your antispam
> measures though.
>
> In my particular case, I have a site for people in my area. If you're
> not located in Australia, you cannot register. If you're registered, you
> can login.
>
>
> --
> [ Drupal support list | http://lists.drupal.org/ ]
>



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