http://www.allspammedup.com/2011/01/google-recaptcha-cracked/
I would suggest moving to a different type of captcha or another type of authentication altogether. Computers are getting smarter, any system will be cracked someday but Wikipedia is still using a basic captcha and doesn't seem to be having any major problems (at least that I've heard of).
.g
> From: michael.john.kirk@gmail.com> Date: Mon, 25 Apr 2011 11:54:39 -0700> To: thethinktank@lists.bikecollectives.org> Subject: Re: [TheThinkTank] Bike Collective Wiki is under attack and we need your help.> > Unfortunately, Captcha, or any similarly themed 'human check', breaks> down when labor is so cheap in some parts of the world that it become> economical to pay human beings to type in captchas all day. :(> > We have this on our internal wiki:> > ====> What?! You don't have an account!?> Don't worry! Any existing user can create an account for you.> Just ask them to log in and fill out [[this user registration form]]> for you. If you're shy, you can ask it@bicyclekitchen.com> ====> > This takes some of the burden off of the moderators, but might be> prohibitively non-inclusive for the think tank.> > M> > On Mon, Apr 25, 2011 at 11:18 AM, Jonathan Morrison> <jonathan.morrison@gmail.com> wrote:> > Rich Points at Community Cycles (Boulder, CO, USA) has complete control of> > the bikecollectives.org and bikebike.org domain names and hosting. However,> > the wiki has been under serious attacks from spammers> > (http://www.bikecollectives.org/wiki/index.php?title=Special:RecentChanges&limit=500),> > so he needs your help to come up with solutions. Specifically?> > We need a MediaWiki security solution that still keeps the wiki easy to> > contribute, but keeps most of the spammers at bay and doesn't burn out the> > moderators. So far we have implemented ReCaptcha and email validation> > requirements on user creation, but it appears even those are being thwarted.> > Sincerely,> >> > Jonathan Morrison> > c: 801-688-0183> >> > _______________________________________________> > Thethinktank mailing list> > Thethinktank@lists.bikecollectives.org> > To unsubscribe, send a blank email to TheThinkTank-leave@bikecollectives.org> > To manage your subscription, plase visit:> > http://lists.bikecollectives.org/listinfo.cgi/thethinktank-bikecollectives.org> >> >> _______________________________________________> Thethinktank mailing list> Thethinktank@lists.bikecollectives.org> To unsubscribe, send a blank email to TheThinkTank-leave@bikecollectives.org> To manage your subscription, plase visit:> http://lists.bikecollectives.org/listinfo.cgi/thethinktank-bikecollectives.org