phpBB KittenAuth is a modification for
that replaces the
based visual confirmation with a
based visual confirmation.
If you have
(or other popular forum software) installed on your
web site, you know the problem of spammers trying to register to your
forum to post SPAM posts or to use homepage and signature web links to
improve their Google page rank.
Even if you only have to delete a few SPAM posts and users every day,
this will cost some of your precious time and resources every day.
To prevent SPAM bots
and other nun-humans from registering and posting to your forum, phpBB offers
visual confirmation that can be enabled. Unfortunately,
algorithms are getting better and better, and also the dark
side of the web uses this technique in their software for malicious purposes,
making phpBB's currently used visual confirmation effectively useless.
One possible solution is to use CAPTCHAs that are harder and harder to
decipher by computers. Unfortunately, they are also harder and harder to
be correctly recognized by humans, and very soon computers will be
better at this task than humans at all!
Therefore, a better solution is not to make visual confirmation harder and
harder for humans and computers, but to find a more intelligent
approach that is very easy to handle for humans, but very hard for computers
or software to do (yet).
One such approach was described by Oli Warner
in his article
The Cutest Human-Test: KittenAuth
. This idea was implemented
and released to the phpBB community as phpBB KittenAuth
on this site.