Recaptcha Hacked?

[Richard Housham]

Hi I've been using recaptcha accross many sites and I'm sure that it's working correctly.
However over the last month there has been some more spam than normal.
Now normally I would write this off as human spammers and just people being paid pennies to spam people.
But this is different - I've had the same message several times in the same minute.
Do you think the keys might have been hacked by a few and maybe changing them might solve the problem?

Following up from this, we put the comments posted into a pending area which we need to approve anyway so what makes spammers want to come back to the site?

Thanks for your help and comments.
Regards
Richard
 

[Dave Butler]

I would be curious if you come across any solutions. I've been seeing a lot of message come through our reCaptcha protected forms in the last couple weeks also. So much so we are getting multiple comments about it from our site admins.

[Andy Tynefield]

I've been seeing this asked a lot. From the older conversations and threads it appears the majority of the spam is actual humans being paid to complete captchas. Due to my own clients and visitors I've concluded the use of recapcha. I still support the cause it upholds, just not the implementation. I've updated all sites of mine since to use PlayThru's human verification - http://areyouahuman.com

I've been ecstatic with the usability and implementation.

[Sent from Andrew's iPhone]

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[Richard Housham]

I admit it does help but - still getting the same messages a few times on the same time - these aren't humans!
Just looking at your game thing and it's nice but doesn't really fit most websites.
Richard

[Dom Sekotill]

The humans just complete the captchas, the messages are still from bots.

[Image CAPTCHA]

reCAPTCHA is getting easier to get through by bots. In the end its all about being able to provide friction-less yet secure solutions to the end user. Try Confident Technologies', image based CAPTCHA. Its easy to implement and has the highest solve rates of any CAPTCHA on the market today. www.confidenttechnolgies.com .
Andy

[Paul Middleton]

I have also been seeing a significant increase in spam posts over the last few weeks. I guess it could be humans completing the ReCAPTCHA, then bots adding the spam, but if someone was going to that effort, surely they'd make sure the spam itself at least made sense, which it doesn't in most cases!

[Jerry Hollombe]

A lot of the spam is just gibberish to get the eddress on the screen
with the hope that someone will respond to it. At least, I can't think
of any other purpose for it.

--
Jerry Hollombe
Webmaster, http://www.thegarret.info/

[banacan]

Try Googling "decode captcha", you will find numerous services that now decode captchas programmatically.  You will also see YouTube videos of seminars showing how their algorithms are thwarting the captcha process.  The days of protecting against spam through captcha are behind us.