Comments on: Wordpress plugin reCAPTCHA - Digitize books while stopping spam

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By: jameswillisisthebest

jameswillisisthebest — Sat, 08 Sep 2007 20:32:40 +0000

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By: Ben Maurer

Ben Maurer — Sat, 09 Jun 2007 19:19:48 +0000

Just fyi, the whole “copy the code into a text box” thing is because you have JS turned off. Most visitors don’t have to go through that process.

Also, if you can’t read one of the words, the refresh button is always there to help. We use this as a signal that the CAPTCHA is too hard, and eventually stop serving it to users. We also take a hint from inconsistent answers on a given word.

By: David Millar

David Millar — Mon, 28 May 2007 02:36:21 +0000

Just an FYI to the comments above - I believe I read that they offer the misread words multiple times and build up a confidence level for the correct word before choosing a permanent answer.

By: a

Sun, 27 May 2007 03:02:12 +0000

@SusanO:

The reason there are two words in the box is that the reCaptcha software doesn’t actually know the answer to the first one: the first word is the one that was incorrectly read by OCR software is being “read” by the captcha user. To verify that the poster is not a script or whatnot, there has to be a second word to which the widget knows the answer. I can’t think of a way around this for now, while providing the same functionality.

By: Cris

Cris — Sat, 26 May 2007 17:29:20 +0000

I like the idea of relying on statistical returns, especially since the captcha widget servies up words with punctuation. Assuming someone types in the second word correctly and relying on that one response seems a little overly-trusting.

By: Dave

Dave — Sat, 26 May 2007 12:10:25 +0000

That’s true Josh. Malicious corruption needs to be considered. But I’m not sure which a person would always be able to tell which word is which. Like right now I have the choices lantern and foribio. Both are fairly easy to read and unless they aren’t doing any sort of dictionary check I know what my guess would be. But there isn’t a hard indication.

Another way would be to rely on stats, and offer up each word multiple times.

By: Frank

Frank — Sat, 26 May 2007 12:09:04 +0000

Just testing it out.

Seems like a cool idea though I think there would be a huge potential for malicious activity, i.e. feeding incorrect words into the captcha for one word while doing the first correctly. I dunno.

By: Josh

Josh — Fri, 25 May 2007 23:54:11 +0000

Just testing it out.

Seems like a cool idea though I think there would be a huge potential for malicious activity, i.e. feeding incorrect words into the captcha for one word while doing the first correctly. I dunno.

By: SusanO

SusanO — Fri, 25 May 2007 23:08:53 +0000

I’d like to see one word per box, replace the speaker icon (what, am I going to be serenaded?) with the more commonly used wheelchair icon, and make the whole thing just a leeeeetle bit bigger.