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AI bots now beat 100% of those traffic-image CAPTCHAs (arstechnica.com)

submitted 1 month ago by ForgottenFlux@lemmy.world to c/technology@lemmy.world

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Anyone who has been surfing the web for a while is probably used to clicking through a CAPTCHA grid of street images, identifying everyday objects to prove that they're a human and not an automated bot. Now, though, new research claims that locally run bots using specially trained image-recognition models can match human-level performance in this style of CAPTCHA, achieving a 100 percent success rate despite being decidedly not human.

ETH Zurich PhD student Andreas Plesner and his colleagues' new research, available as a pre-print paper, focuses on Google's ReCAPTCHA v2, which challenges users to identify which street images in a grid contain items like bicycles, crosswalks, mountains, stairs, or traffic lights. Google began phasing that system out years ago in favor of an "invisible" reCAPTCHA v3 that analyzes user interactions rather than offering an explicit challenge.

Despite this, the older reCAPTCHA v2 is still used by millions of websites. And even sites that use the updated reCAPTCHA v3 will sometimes use reCAPTCHA v2 as a fallback when the updated system gives a user a low "human" confidence rating.

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[-] sunzu2@thebrainbin.org 6 points 1 month ago

Well we trained them

[-] AA5B@lemmy.world 5 points 1 month ago

That’s suspicious - I can’t pass 100%. here’s a new captcha for you: make the user do 100 in a row

100% is ai
<50% is dumb “ai”
in between is a person

[-] devilish666@lemmy.world 4 points 1 month ago

So...if CAPTCHA are already beaten by bots what's the point if it still exists ? to mock our weakness ?
In the old days CAPTCHA could do its job, but nowadays nah....even crawler/scrapper/meta bots can bypass it easily.
The real question is why do we as real humans still often fail to beat CHAPTCHA? Are we less human? Are we really robots in CHAPTCHA perspective ?

[-] queue@lemmy.blahaj.zone 6 points 1 month ago

To train Google/Cloudflare's AI tools, and to double check against DDOS. That's it.

[-] sudoer777@lemmy.ml 4 points 1 month ago

So now we're going to have AI training other AIs

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[-] sudo@programming.dev 4 points 1 month ago

Pro-tip for webscrapers: using AI to solve captchas is a massive waste of effort and resources. Aim to not be presented with a captcha in the first place.

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[-] FlyingSquid@lemmy.world 3 points 1 month ago

Our long international nightmare is finally over!

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[-] capuccino@lemmy.world 3 points 1 month ago

we have trained them very well

[-] nucleative@lemmy.world 3 points 1 month ago

There is a Russian captcha solver bot called xevil that costs under $100 (I think, last time I looked) that has been able to solve nearly all captchas for years. You just have to supply it with relatively expensive proxy IP addresses because Google rate limits solve attempts.

So the title of this article has been true for a long long time. Capatchas are absolutely useless except against poor or uninformed script kiddies.

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this post was submitted on 27 Sep 2024

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