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.

  • communism@lemmy.ml
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    29 minutes ago

    And yet I can’t beat the CAPTCHAs because reCAPTCHA doesn’t like VPNs lol

  • pixxelkick@lemmy.world
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    3 hours ago

    Well yeah, I’d hope so, that’s the entire point.

    Catcha’s data collection always was with the intent for training ai on these skills. That’s “the point” of them.

    It’s reasonable to expect that the older version of captchas can now be beaten by modern ai, because they’re often literally trained on that exact data to beat it.

    Captcha effectively is free to use on websites as a tool because the data collection is the “payment”, they then license that data out to people like OpenAI to train with for stuff like image recognition.

    It’s why ai is progressing so fast, captchas are one of humanity’s long term collected data silos that are very full now.

    We are going to have to keep progressing the complexity of catches as it will be the only way to catch modern AIs, and in turn it will collect more data to improve it.

    • dumbass@leminal.space
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      1 hour ago

      I had one with one of those Motorcycles with the long handles, apparently they aren’t part of the bike, but the dudes foot holding it up is.

    • ripcord@lemmy.world
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      3 hours ago

      Or, like, “there’s the bottom 10% of a traffic light in this one. Do I click that box? Ia that supposed to count?”

      • thisNotMyName@lemmy.world
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        2 hours ago

        Does the backside of a traffic light even count? What about these strange traffic lights that have more boarder than light?

  • blattrules@lemmy.world
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    3 hours ago

    I never get the first one and rarely the second one. If it says to click all the squares with motorcycles and it’s just the one big picture, am I supposed to click stuff like the tire and mirrors? I always do and never get it right. Then most of the time they ask me to identify motorcycles, they show me motor scooters and what am I supposed to do then? I think I just need to get one of these bots to do it for me.

    • CosmicTurtle0@lemmy.dbzer0.com
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      3 hours ago

      Fwiw they aren’t really asking about the motorcycle. I mean they are but they are washing your mouse movements and how fast you click through the images. It’s okay to get a few images wrong.

      • pixxelkick@lemmy.world
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        3 hours ago

        Not quite.

        It’s mostly wisdom of the crowd, as it always has been.

        As long as you mostly click the same squares most other people click, you pass.

        You often at random get 2-3 images because 2 of them are actual checks, but the third is a new image that you auto pass and they’re using it to gather data on what the average clicks are on it.

  • mosiacmango@lemm.ee
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    6 hours ago

    This is actually a good sign for self driving. Google was using this data as a training set for Waymo. If AI is accurately identifying vehicles and traffic markings, it should be able to process interactions with them easier.

    • grue@lemmy.world
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      4 hours ago

      The annoying thing is that they held us hostage for our free labor, but the results are proprietary for Google’s benefit only.

      That training data ought to be forced to be made freely available to the public, since we’re the ones who actually created it.

    • iAmTheTot@sh.itjust.works
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      6 hours ago

      As I understand it, the point of those captchas was never really “bots can’t identify these things” (though you’re right on that it was used to train). They use cursor movement, clicks, and other behaviours while you’re solving it to detect if you are a bot or not.

      • Mushroomm@sh.itjust.works
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        4 hours ago

        Since I started getting good at yosu and that fishing mini game in farmrpg I’ve been failing more captchas. I wonder if they’re related knowing this

      • Takumidesh@lemmy.world
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        4 hours ago

        It’s a combination.

        Most captchas goals generally aren’t 100% prevention, it’s to put a workload in front, this makes spamming the site cost money, a bankrolled attempt could just as easily outsource the captchas to real humans.

      • x00za@lemmy.dbzer0.com
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        4 hours ago

        Well reCaptcha v1 was used for the digitization of books. And that they proudly talked about.

        But to be honest, the pictures were in fact used to dether bots. But also to teach selfdriving cars. I think I also remember a time they used to ask to fill in house numbers probably for their Maps accuracy.

      • mosiacmango@lemm.ee
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        6 hours ago

        Its never been confirmed by Google, so I may be wrong. It still tracks that the data harvesting company with a AI self driving car project would use free human labor to identify road hazards.

        • Arthur Besse@lemmy.ml
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          5 hours ago

          I was referring to the “This is actually a good sign for self driving” part of their comment.

          The captcha circumvention arms race has been going on for over two decades, and every new type of captcha has and will continue to be broken as soon as it’s widely deployed enough that someone is motivated to spend the time to.

          So, the notion that an academic paper about breaking the current generation of traffic-related captchas (something which the captcha solving industry has been doing for years with a pretty high success rate already) is “good news” for the autonomous vehicle industry (who has also been able to identify such objects well enough to continue existing and getting more regulatory approval for years now) is…

          fry not sure meme template, no text

          • mosiacmango@lemm.ee
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            5 hours ago

            Not really. I’m not even sure what you’re disagreeing with based on the above comment.

            My point is that if bog standard AI can accurately identify all of the road information from pictures, that is good news for self driving.

            What was once a nearly impossible task for computers is now mundane, and can be used to improve safety/utility for self driving, especially for FOSS projects like comma.ai

    • crusa187@lemmy.ml
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      5 hours ago

      Afaik this is precisely what the captcha data was intended for - training AI models. Originally leveraged machine learning. LLMs are a slightly different paradigm but same purpose and results here.

  • Yer Ma@lemm.ee
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    6 hours ago

    But, I cannot pass those 50% of the time… what does that mean?

  • the post of tom joad@sh.itjust.works
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    5 hours ago

    Thank God this means i can stop wondering if i should click on the… the 13 pixels from the fucking bike in that one corner square or wondering if i should count the scooter as a motorcycle fuck i am so tired of that shit

    • curry@programming.dev
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      3 hours ago

      Complete the obligatory “is this a staircase or street crossing” round only to be roundhouse kicked back to the beginning.

  • TommySoda@lemmy.world
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    5 hours ago

    I mean, we literally train them by completing the CAPTCHAs. Why do you think you were picking things like bikes, traffic lights, cars, and busses? The only question now is what’s next…

  • superkret@feddit.org
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    7 hours ago

    Wait, so if a visitor fails the v3 Captcha, v2 is used as a fallback?
    That makes absolutely no sense.

    • systemglitch@lemmy.world
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      46 minutes ago

      In use an add-on that does 90% of these for me already on Firefox. I would tell you what it’s called but I’m not at my PC.

      Which (on a side note) I’d totally go downstairs and check for you, but I just sprained my ankle real bad, and am dreading stairs. Sorry :(

      • communism@lemmy.ml
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        26 minutes ago

        Sorry to hear about your ankle. When you’re able to, I’d also like to know what the add-on is

    • Sabata@ani.social
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      5 hours ago

      As someone who can not decide if 3 pixels of a motorcycle counts as a correct square, I need this add on.

  • XNX@slrpnk.net
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    5 hours ago

    Unless this was something people could use i dont rly see it becoming much of a problem. Most people dont even use adblockers