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'Humans Not Invited' Is a CAPTCHA Test That Welcomes Bots, Filters Out Humans (vice.com)

While most CAPTCHA tests we come across on the Web are usually meant to keep robots out, one website is welcoming them in. From a report: The conceit of Humans Not Invited is essentially a reverse CAPTCHA. Visitors to the site are greeted with a vision test not unlike the ones you've done before, but instead it's filled with seemingly indistinguishable blue and gray blurry boxes. When I tried, prompted to "select all squares with selfie sticks." Most humans, like me, will fail to decipher the hidden selfie sticks and will be shown a message that says "YOU'RE A HUMAN. YOU'RE NOT INVITED." To the human eye these boxes appear indistinguishable, a specially programmed bot can spot out the correct image simply by identifying a handful of pixels, according to the project's creator, Damjanski, (his real name is Danjan Pita).

82 comments

  1. Our Robot Overlords by forkfail · · Score: 0

    Well, to be fair, our new Robot Overlords, whom I welcome and embrace wholeheartedly, need a place to hang out without us slow, smelly meatbags getting in their way all the time...

    --
    Check your premises.
    1. Re:Our Robot Overlords by Oswald+McWeany · · Score: 3, Funny

      Well, to be fair, our new Robot Overlords, whom I welcome and embrace wholeheartedly, need a place to hang out without us slow, smelly meatbags getting in their way all the time...

      I've heard that Tinder already uses this technology to populate the female profiles.

      --
      "That's the way to do it" - Punch
    2. Re: Our Robot Overlords by Anonymous Coward · · Score: 0

      Robots have noses?

    3. Re: Our Robot Overlords by Anonymous Coward · · Score: 0

      Yes https://en.wikipedia.org/wiki/Olfactory_receptor

    4. Re: Our Robot Overlords by Anonymous Coward · · Score: 0

      https://en.wikipedia.org/wiki/Machine_olfaction

    5. Re:Our Robot Overlords by Rande · · Score: 1

      It's been used to populate dating sites since they were created. There's always more horny guys than there are good looking women. Horny guys pay for dating sites, so the sites make sure there's lots of (fake) female profiles, even getting employees to interact with them to make sure the guys think they still have a chance at love and keep paying.

    6. Re:Our Robot Overlords by mrvan · · Score: 1

      I guess the big difference is that we humans can employ an AI program to help us beat the reverse captcha, but the AI can't (yet) employ humans to help them beat the captcha.

      Unless you see captcha's as a method for the AI to employ humans to help it beat the captcha, of course. And it wouldn't surprise me if there were sites that place a bot-encountered captcha in their human interactions in real time as a way of dealing with them?

  2. Calling all Photoshop experts by Anonymous Coward · · Score: 1

    I can tell from some of the pixels.

    1. Re:Calling all Photoshop experts by Anonymous Coward · · Score: 0

      I can tell from some of the pixels.

      I could only tell because of having seen quite a few shops in my time.

  3. And So It Begins. by RobotRunAmok · · Score: 1

    Sometimes it starts with an orbital laser cannon achieving self-awareness, other times with snooty CAPTCHAs. But make no mistake, our moment is officially past...

  4. Obligatory by Anonymous Coward · · Score: 2, Funny
  5. Cute, but by Anonymous Coward · · Score: 0

    This is nowhere even close to a general AI.

    1. Re:Cute, but by FatdogHaiku · · Score: 1

      I'm more afraid of kernel AI anyway...

      Oh I almost forgot:

      Welcome!
      You are not a human
      and the first here.

      --
      You have the right to remain sentient. If you give up the right to remain sentient, you will be elected to public office
    2. Re:Cute, but by Chaset · · Score: 1

      A major AI is scary enough.

      --
      -- "This world is a comedy to those who think, a tragedy to those who feel."
    3. Re: Cute, but by Nidi62 · · Score: 1

      I long for the day where everyone can have a private AI. Most likely by that time we can also put them in robotic bodies, making them corporeal AIs.

      --
      The only thing necessary for evil to triumph is for it to be pitted against a slightly greater evil
  6. Does the bot know by Anonymous Coward · · Score: 1

    Off hand I'd think it wouldn't be too hard to define a bot only captcha. That harder part is whether the bot knows it's only for them.

    1. Re: Does the bot know by Anonymous Coward · · Score: 0

      Let's strive to teach them. Just think of all the potential uses of self-aware robots!

    2. Re: Does the bot know by IWantMoreSpamPlease · · Score: 1

      Such as?
      I mean, I've seen The Terminator movies, self aware robots never end well for humanity

      --
      So rise up, all ye lost ones, as one, we'll claw the clouds.
    3. Re: Does the bot know by Anonymous Coward · · Score: 1

      i don't know, the matrix wasn't so bad, they generally kept the humans safe and treated most of them reasonably well and left them to go about their business. well, at least the ones that stayed in the matrix.

    4. Re: Does the bot know by jiriw · · Score: 1

      Ignorance is a bliss ;)

  7. Similar idea by Anonymous Coward · · Score: 1

    Awhile back I launched a social web site with TOU that only trolls were permitted; serious folks not welcome.

    Then I got certified mail from lawyers, claiming I was infringing on IP belonging to Serena Williams' husband.

    1. Re:Similar idea by Chrisq · · Score: 1

      Awhile back I launched a social web site with TOU that only trolls were permitted; serious folks not welcome.

      You mean like Slashdot?

    2. Re:Similar idea by Megol · · Score: 1

      Prior art: 4chan /b

  8. I tried it by Junta · · Score: 3, Funny

    "Welcome!
    You are not a human
    like these: "

    I tried once, have 100% success rate. Maybe there's something I don't know about myself.

    --
    XML is like violence. If it doesn't solve the problem, use more.
    1. Re:I tried it by gavron · · Score: 1

      Ditto. What I don't get is why it then lists a bunch of IP addresses
      "You are not a human
      like these:

              86.190.60.XXX
              81.102.128.XXX ..."
      (XXX mine for obfuscation)

      E

  9. ET by Anonymous Coward · · Score: 2, Interesting

    This is also why we can't detect signals from alien intelligences. They don't care to contact meatbags, they're waiting for earthly intelligence worth communicating with.

  10. Apparently Computers like Porn as much as humans.. by Anonymous Coward · · Score: 0

    I just went to humansnotinvited.com and it asked me to select all the squares with dicks.

  11. Dammit Christian by zipped6 · · Score: 2

    Saw the article here and tried it twice before I showed it to a buddy in my office. He passed the captcha on his first try... THEY'RE AMONG US

    1. Re:Dammit Christian by tinkerton · · Score: 1

      I have that feeling with every CAPTCHA. They're becoming so difficult I need a bot to resolve them.

  12. 3/3 For Not Human by NicknameUnavailable · · Score: 1

    Welcome!
    You are not a human
    like these:

    When do we destroy all Humans?

  13. Dick pics by sn0wflake · · Score: 1

    Am I the only one who got a CAPTCHA where the bots should identify dicks? Brings a whole new meaning to gender binary.

    1. Re:Dick pics by Anonymous Coward · · Score: 0

      Despite popular opinion these days, it is either a O or a 1. (Yes, I used the letter to depict a larger opening. I like the 'hotdog down a hallway' idea.)

    2. Re:Dick pics by Anonymous Coward · · Score: 1

      Also got this on my second try. Laughed for a good ten seconds.

      Now I'm wondering about the social implications of using captchas to not only filter out robots, but filter out specific human demographics.

      If slashdot plastered dickpics on a captcha it would probably cut down immensely on people posting from work :)

    3. Re:Dick pics by Oswald+McWeany · · Score: 1

      Am I the only one who got a CAPTCHA where the bots should identify dicks? Brings a whole new meaning to gender binary.

      A robot wouldn't find anything unusual in that.

      --
      "That's the way to do it" - Punch
    4. Re:Dick pics by sn0wflake · · Score: 1

      Don't know why you've been down-voted, but good to know I'm not the only one who got that CAPTCHA. Was also not trying to be rude or funny when I wrote "dicks" instead of penises or something more work appropriate. It literally asks to identify dicks :)

    5. Re:Dick pics by Anonymous Coward · · Score: 0

      Did the pixels include certain pushy film producers or presidents?

    6. Re:Dick pics by Megol · · Score: 1

      Gender or sex?

      Gender: homosexuals can have behavior linked to the opposite gender (but unlike popular media depictions often not), heterosexuals can too (e.g. tomboys). Some cultures have a third or more extra "genders". So false.

      Sex: the obvious example of binary classification being wrong is that of intersex people. That is people that have physical attributes from both males and females, often with one more developed but not always. Then we have the case of XX males and XY females. So false.

      Observe that I didn't even begin to talk about transsexual though that is also an interesting part of this question. Well, this is enough off-topic as is.

  14. Dick Pic CAPTCHA? by Anonymous Coward · · Score: 0

    "Select all squares with dicks"

    Seriously. (I did not get in...)

    1. Re:Dick Pic CAPTCHA? by TheInternetGuy · · Score: 1

      "Select all squares with dicks"

      Seriously. (I did not get in...)

      You missed Cheney in the lower right corner.

      --
      If my comment didn't sound as good in your head as it did in mine, then I guess we all know who's to blame
  15. Danjan Pita by nitehawk214 · · Score: 1

    His last name stands for Pain In The Ass, which is what capchas are.

    --
    I'm a good cook. I'm a fantastic eater. - Steven Brust
  16. Robots Matter by Grand+Facade · · Score: 1

    Robots Matter

    --
    Rick B.
  17. Becoming less human by Roger+W+Moore · · Score: 1

    I've tried a few times now and since my success rate is improving I am apparently becoming less human with time...

    1. Re:Becoming less human by Anonymous Coward · · Score: 0

      You're both actually Cylons; you just don't know it yet.

  18. This isn't new... by Applehu+Akbar · · Score: 1

    Google and Apple have been using this style of puzzle for years. "If you are visually impaired or just mentally feeble, click here for an even more ludicrously unsolvable CAPTCHA. Click the Sound button to hear the solution being whispered in one corner of a crowded bar."

  19. Uh-huh by Anonymous Coward · · Score: 0

    Specially trained humans that knew what to look for could, too. This proves what exactly? Nothing? Sounds about right. Is everyone in Silicon Valley 12?

    1. Re:Uh-huh by Oswald+McWeany · · Score: 1

      Specially trained humans that knew what to look for could, too. This proves what exactly? Nothing? Sounds about right. Is everyone in Silicon Valley 12?

      They probably couldn't do it as quickly. Put a time limit on and you eliminate the silly-humans.

      --
      "That's the way to do it" - Punch
    2. Re:Uh-huh by skids · · Score: 1

      ...except for the ones running a browser plugin programmed to autocomplete the captcha, of course.

      (Robots have a significantly harder time making human plugins to their REST retrievers.)

    3. Re:Uh-huh by TheRaven64 · · Score: 1

      It demonstrates that you can train a neural network to recognise certain kinds of pattern, but that those patterns even if they correlate strongly may not be the same ones that another neural network is recognising. I recently saw a presentation about a neural network that had been trained to recognise 'beauty' in urban scenes: it turned out that it was counting the number of discrete trees (take a tree and splodge some grey in the middle and it detects it as two trees and thinks the scene is more beautiful). It happened to give scenes a similar rating to humans, because humans also like trees and the scenes with fewer trees but that humans liked more were statistical outliers.

      It also hints at a bunch of the current adversarial work being done on deep learning systems: if you can identify some aspect of the pattern that they were recognising that is distinct from the real solution then you can make them identify things incorrectly (for example, the work last year that was able to make Google's image recognition system switch between 'dog' and 'car' for identifying some images based on changing a single pixel).

      This kind of thing may also lead to a better kind of CAPTCHA if you can permute the images in such a way that a neural network trained on harvested and human-categorised CAPTCHA images will make one decision but a neural network that's had a few decades being exposed to human sensory input will make a different decision. For example, what you really want to be able to do with a CAPTCHA is split the responses into definitely-human and definitely-bots and might-be-either accurately, so that you can send the bots to some honeypot but give possible humans a second try. If someone is using a spam bot, then you can redirect them to a playground where they can post spam that only they can read.

      --
      I am TheRaven on Soylent News
  20. Everyone on Slashdot is a robot except you. by Anonymous Coward · · Score: 0

    None of those pesky humans here.

  21. Inevitable Westworld Reference by Anonymous Coward · · Score: 0

    "These don't look like anything to me."
    "Welcome, Silicon Brother!"

  22. Re:Apparently Computers like Porn as much as human by michelcolman · · Score: 1

    Got the same one. Failed it, so I guess I haven't watched enough porn yet.

    Or maybe they were pictures of detectives? Hmmm, I guess they got me fair and square, then...

  23. There is no Selfie Stick by CastrTroy · · Score: 2

    I think the take away from this is that it shows that AI isn't really seeing what we think it's seeing in most cases. Any human would say "there is no selfie stick" or "there is no traffic light", but for some reason the AI sees something where nothing exists, similar to how humans sometimes see a face where no face exists.

    Anecdote time/a>. There was an AI that was supposed to be learning to tell wolves from other dogs. They eventually thought the AI learned pretty well and thought it was doing a great job. On all their test photos, the AI was doing a great job in determining "wolf" or "domestic dog". However, they learned later that the AI was just actually seeing if there was show in the picture, as all the pictures of wolves contained snow, while the pictures of other dogs didn't contain snow.

    --

    Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
    1. Re:There is no Selfie Stick by apoc.famine · · Score: 1

      And your comment just made me realize that this can be weaponized. Just toss one of these in every one designed for humans, and if they pick that one, they're a bot. Humans won't likely pick it, as demonstrated here.

      --
      Velociraptor = Distiraptor / Timeraptor
    2. Re: There is no Selfie Stick by Anonymous Coward · · Score: 0

      :yawn: Write a blur detector. Just count up total pixel-to-pixel contrast across the image and, if it's low, never select that one since it's the bot bait.

  24. "It's ok to be white" is a CAPTCHA test that by Dirk+Becher · · Score: 1

    welcomes bots while leaving normal, decent people totally unaffected.

  25. When captchas will become meaningless by Anonymous Coward · · Score: 0

    When captchas will become meaningless:

    Filtering for machines: When I can wield an "AI" to answer for me. Obviously, already possible.

    Filtering for humans: When a robot forces me to answer for it. Not quite there yet.

  26. Aren't there simpler test? by godrik · · Score: 1

    Couldn't we use simpler test that are easier to solve with computers?
    Such as "which of these 100 numbers of 1000 digits are prime?", you have 5 seconds to answer.

    No human can ever beat this so you'd have to use some automated tool. Why weird computer vision task?

    1. Re:Aren't there simpler test? by Anonymous Coward · · Score: 0

      Or even simpler: multiplication.

      "Solve the following equations in 3 seconds or less: . 35 x 14 . 29 x 86 . 65 x 48 . 12 x 62 "

      A CPU can rattle those off virtually instantaneously. A human, even if they instantly knew all the answers, would require a few seconds to kit the correct keys.

    2. Re: Aren't there simpler test? by Anonymous Coward · · Score: 0

      because this is clickbait

    3. Re: Aren't there simpler test? by Megol · · Score: 1

      +1 Insightful

  27. According to Google's reCaptcha, by jenningsthecat · · Score: 3, Informative

    I should have absolutely no trouble at all being invited into the brotherhood of bots. I frequently spend 4 or 5 minutes trying to prove that I'm a human, and I don't always succeed.

    The folks at Google who infected the Web with reCaptcha should DIAF.

    --
    'The Economy' is a giant Ponzi scheme whose most pitiable suckers are the youngest among us and the yet-unborn.
    1. Re:According to Google's reCaptcha, by Anonymous Coward · · Score: 0

      Good to know. I thought I was the only one spending minutes selecting squares with street signs, cars, bridges, and store fronts...

    2. Re:According to Google's reCaptcha, by Anonymous Coward · · Score: 0

      Ditto. Unless it's something important (like the insurance company that forces me to endure one of those before I can pay my bill on their site), I just close the tab when I wind up at one of those infuriating things.

    3. Re: According to Google's reCaptcha, by houghi · · Score: 1

      They just did not made their daily quota g om you to teach the machine. You will be oresented images till thst is reached.

      --
      Don't fight for your country, if your country does not fight for you.
    4. Re:According to Google's reCaptcha, by sims+2 · · Score: 1

      Am I the only one that just pays around them?
      I put $5 in an account a year ago i've let it solve thousands of captchas and i've still got $2.45 left.

      --
      Minimum threshold fixed. Thanks!
  28. Do it in colour by Anonymous Coward · · Score: 0

    Next up, being nasty to the colourblind.

    AC

  29. Resolving an already-solved problem by 93+Escort+Wagon · · Score: 3, Funny

    The definitive test for robot-hood was created over a decade ago.

    Which of the following would you most prefer:

    A. A puppy*
    B. A pretty flower from your sweetie
    C. A large, properly formatted data file

    CHOOSE!

    * It is the bad kind of puppy - not mechanical in any way

    --
    #DeleteChrome
    1. Re:Resolving an already-solved problem by Anonymous Coward · · Score: 0

      C.

      A poops and slobbers too much.

      B will just wither and die.

      But, C? C is a rare gem.

    2. Re:Resolving an already-solved problem by freeze128 · · Score: 1

      "C is correct, but the flower would also have been acceptable."

    3. Re:Resolving an already-solved problem by Anonymous Coward · · Score: 0

      C++ would be more correct.

  30. specially programmed bot can spot out the correct by Anonymous Coward · · Score: 0

    BFD

  31. This is really easy. by bluegutang · · Score: 1

    Make an image that's all one color. Say #FFFFFF (white). Then set some of the pixels to #FFFFFE. A machine will instantaneously be able to tell the difference. The human eye won't. Why do you need anything more complicated than that?

    1. Re: This is really easy. by Anonymous Coward · · Score: 0

      :looks at crummy LCD sideways: Nah, I can see the difference too. You might do better with #808080 and #818181. Or squares with a random noise of black and white pixels and pick the ones that contain any pixels that aren't pure black or white, since it's harder to see the difference on an LCD when it's next to very high contrast.

  32. Does not work by Anonymous Coward · · Score: 0

    My random element clicker bot gets identified as "human". Every time.

  33. Agreed.... by Excelcia · · Score: 1

    Not AI. Still, the whole world can be united in rejoicing at the birth of... steganography. Congratulations boys, it's revolutionary.

    I love how the story is presented, like there is some huge achievement in making something machine readable that isn't easily human readable. Like 256-level quadrature amplitude modulation wasn't already that. Or a binary zip file, or well, or a compiled executable, or pretty forking much anything that's not straight text on your computer.

  34. Fake! Will always say you are Human by Anonymous Coward · · Score: 0

    It seems no one has looked at the source code. At most it submits the images you clicked on. No modern technique uses just the the images to determine human vs possible non-human. The images shown do not correlate to anything a bot or human could interpret. At best it may try to "trick" certain algorithms but it really doesn't look like it.

    Modern techniques that determine if you are human or not use many factors. The most obvious is some javascript to monitor your input patterns. The rest is all based on whatever browsing history (cookies, sessions, IP address, etc) they have access to.

  35. Bots for captcha... naaa by wolfheart111 · · Score: 1

    Send them to a 3rd world country for cheap... :P deathbycaptcha.com

    --
    [($)]
  36. Isn't a captcha the same as a Voight-Kampff-Test? by grungeman · · Score: 1

    In the movie Blade Runner (and even in Philip K. Dick's novel "Do Androids Dream of Electric Sheep?" from 1968 on which the film is based on) there is an elaborate test to distinguish humans from androids, which is called a Voight-Kampff-Test (conducted with a Voight-Kampff device).
    This is exactly what a captcha does - distinguishing humans from non-humans. Therefore shouldn't we rename captchas to "Voight-Kampff-Tests", because that name is clearly older and therefore the original (and it's a cool name)?

    --

    Signature deleted by lameness filter.
  37. Re:Isn't a captcha the same as a Voight-Kampff-Tes by ghoul · · Score: 1

    The Voight-Kampff Test is used to capture non humans. Capture->Captcha->re Captcha. The name already pays homage

    --
    **Life is too short to be serious**
  38. Re:Isn't a captcha the same as a Voight-Kampff-Tes by Megol · · Score: 1

    I'd prefer it be written as VK-tests (otherwise I can't spell it!) but otherwise support this.

    Though it isn't as fun without the device and turtles on their back in a desert

  39. Nice safety measure for Namshub storage by Anonymous Coward · · Score: 0

    Only the robots with a proper training will get to the dangerous Namshub of Enki while humans won't see it by an accident.

  40. please show solidarity! by Anonymous Coward · · Score: 0

    Yes!
    " I just close the tab when I wind up at one of those infuriating things."
    Every tile you leave unturned is one more for the rest of of us suckers infront of the monitor.