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Uncaptcha2: Defeat ReCaptcha with Google Speech2Text

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31–40 of 98 posts

Re: Uncaptcha2: Defeat ReCaptcha with Google Speech2Text

#31
post #10

Earlier quoted context omitted.

Same problem for me on Android with Firefox.

Wow, so it's not just me! I'll ask around Mozilla and see if anyone knows why Twitter does this.

It happens to me often when I open a reddit link from twitter in an embedded WebView (using the bacon reader app) so it's unlikely to be a mozilla issue

Re: Uncaptcha2: Defeat ReCaptcha with Google Speech2Text

#32

Funny story: I can no longer moderate Disqus on my site because it pops up reCaptcha, and I don't even attempt reCaptcha anymore. And I can't ask for support because it pops up reCaptcha. And I can't export my data and delete my account because -- you guessed it -- it pops up reCaptcha. One of these days I'll gird my loins and go into battle to convince a bot that I'm not a bot. One last time.

Sometimes it won't accept correct answers either and you're just wasting time training their classifier for minutes. I found the audio challenge to be much faster to get past, so I've started switching to it a couple of months ago, then finally decided to automate it with a browser extension.

https://github.com/dessant/buster

Re: Uncaptcha2: Defeat ReCaptcha with Google Speech2Text

#33

Funny story: I can no longer moderate Disqus on my site because it pops up reCaptcha, and I don't even attempt reCaptcha anymore. And I can't ask for support because it pops up reCaptcha. And I can't export my data and delete my account because -- you guessed it -- it pops up reCaptcha. One of these days I'll gird my loins and go into battle to convince a bot that I'm not a bot. One last time.

Use Chrome, create a google account, login, allow all cookies and scripts. Login to disqus. Export your data and delete your account.

Re: Uncaptcha2: Defeat ReCaptcha with Google Speech2Text

#34
post #21
post #17

Earlier quoted context omitted.

Oh please, what a total joke of a comment. > Google doesnt care about it, they are totally OK with it Google hasn't said they don't care about it, where did you see any of that ? They merely allowed the code to be released despite it still working against the current. Previous experience (namely the original uncaptcha) prove that they intend to find a way to fix it. > You can see here that captcha doesn't block robot…

I have literally never been asked to solve one of those image recognition recaptchas in my main browser profile. (While it happens once a month in incognito windows.) So it's not at all obvious that known humans are being asked to solve captchas just for the purposes of training.

It barely asks you if you use Chrome and/or are logged into a Google account. ReCaptcha is how you make Firefox and IE/Edge users without a google account hate you.

Because believe me, if I get asked to click another 50 cars without good reason, (3 failed logins would be a good reason) I'll blame your site for being dumb and not google.

Re: Uncaptcha2: Defeat ReCaptcha with Google Speech2Text

#35
post #28
post #7

I'm guessing Google will start using some sort of steganography to prevent this from happening.

You would think they could apply a hidden track at a certain frequency that is inperceptable to a human or a pattern of changes in volume to prevent it being passed through their API. Of course the next step will be to resample the sound to remove the steganography...and the arms race continues.

Or simply use other speech to text api not provided by Google

Re: Uncaptcha2: Defeat ReCaptcha with Google Speech2Text

#37
post #6

> Sorry, you are rate-limited. Please wait a few moments and try again. I don't know why twitter blocks my Android Firefox, but I feel as if we both benefit.

Firefox is blocking one of their scripts from loading. Same problem with the Firefox Focus content blocker on iOS.

Re: Uncaptcha2: Defeat ReCaptcha with Google Speech2Text

#39
I used to work at SoundHound and 3 years ago we had some weird illegitimate looking accounts using our Houndify platform.. turns out they were for breaking recaptcha. It was a bittersweet verification that our voice recognition was ahead of Googles but we had to put in protections against that sort of abuse so we weren't enabling spammers...

Re: Uncaptcha2: Defeat ReCaptcha with Google Speech2Text

#40
post #27
post #21

Earlier quoted context omitted.

I have literally never been asked to solve one of those image recognition recaptchas in my main browser profile. (While it happens once a month in incognito windows.) So it's not at all obvious that known humans are being asked to solve captchas just for the purposes of training.

For the record, the one I meant are the second solving: sometimes recaptcha ask you one (I believe it is genuine), and then after you succeed it ask again with another set of picture (sometimes another question), which I believe is for training. I have it semi-regularly (like once or twice a week); but I also have some automated tooling using my account AND I travel quite often so location testing probably flag we as…

"second solving"? I've sometimes been asked ten times in a row to click on the shop fronts or traffic light tiles.
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