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From: Alastair Campbell
Date: Thu, Aug 10 2006 2:50AM
Subject: RE: Setting Up Accessible Log-In ForPasswordProtectedAreasOf A Website
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Erika Noll Webb wrote:
> Someone asked me recently what was a good alternate system
> for captcha that didn't leave the system vulnerable.

It depends what the system is. If you need to vet logins, the logical
puzzle is probably best (as Micheal Moore's links suggested).

If you are preventing spam comments (e.g. on a blog), I've found
Akismet(.com) to work very well.

It works by checking each comment as it is posted against a central
database of spam comments, using a funky matching algorithm.

Since other people are much higher profile than me, they are probably
reporting the spam before the spammers get to my site. In any case, I've
not had one get through yet (out of about 100 spam attempts per month).

You can use Akismet for non-wordpress applications, but it is for
comments rather than logins.

Kind regards,

-Alastair

--
Alastair Campbell | Director of User Experience

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