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Why the CAPTCHA Approach Is Doomed

TechnoBabble Pro writes "The CAPTCHA idea sounds simple: prevent bots from massively abusing a website (e.g. to get many email or social network accounts, and send spam), by giving users a test which is easy for humans, but impossible for computers. Is there really such a thing as a well-balanced CAPTCHA, easy on human eyes, but tough on bots? TechnoBabble Pro has a piece on 3 CAPTCHA gotchas which show why any puzzle which isn't a nuisance to legitimate users, won't be much hindrance to abusers, either. It looks like we need a different approach to stop the bots."

26 of 522 comments (clear)

  1. question and answer seem to work well by get+quad · · Score: 4, Funny

    ...until AI gets smart enough to answer questions intuitively.

    --
    "To err is human, to mod Funny divine."
    1. Re:question and answer seem to work well by RichardJenkins · · Score: 4, Funny

      At that point spam will be the least of you worries, fleshbag.

    2. Re:question and answer seem to work well by HTH+NE1 · · Score: 2, Funny

      "Are you alive?"

      "Yes."

      "Prove it."

      --
      Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    3. Re:question and answer seem to work well by sexconker · · Score: 3, Funny

      I don't know.
      Humans fail the "What are your username and password?" question all the time.

    4. Re:question and answer seem to work well by Anonymous Coward · · Score: 1, Funny

      (Bots: No lying)

  2. Just accept the truth ... by jbeaupre · · Score: 4, Funny

    ... you are a computer. Life, er, up-time will be easier.

    --
    The world is made by those who show up for the job.
  3. Re:So what next? by Hojima · · Score: 4, Funny

    So if the CAPTCHA is doomed, what is the next approach?

    Torture

  4. Re:So what next? by Mordok-DestroyerOfWo · · Score: 5, Funny

    Maybe a different type of system? Show a series of animals and ask which one is a pet. Show a series of letters and ask which one is the vowel. A series of types of food and ask which one would go best with Natalie Portman. Show an action shot and a series of similar actions, ask which one would occur in Soviet Russia.

    --
    "Never let your sense of morals prevent you from doing what is right" - Salvor Hardin
  5. Stopping bots is easy... by MrBippers · · Score: 5, Funny

    Solve the following math problem to continue:
    1/0 = ?

  6. Re:So what next? by Cynonamous+Anoward · · Score: 2, Funny

    Interesting idea, actually...Humans will respond to torture, bots will not....

    the trick is how to measure human suffering?

    --
    "The GPL is viral by design, like any good religion."
  7. Re:It's a Turing test by Chad+Birch · · Score: 5, Funny

    This is my favorite captcha, some are ridiculous: http://random.irb.hr/signup.php

    Refresh the page a bit, fun to see what you can get.

    --
    Sturgeon was an optimist.
  8. Re:So what next? by crazyvas · · Score: 5, Funny

    So if the CAPTCHA is doomed, what is the next approach?

    Torture

    You mean, TORTCHA?

  9. Re:So what next? by Arancaytar · · Score: 5, Funny

    Place Goatse on the front page. After everyone's eyes are bleeding, the only remaining visitors will then be robots. Behold, you have isolated the set of spambots from the set of humans.

    Inverting the set to get the humans instead of the bots is left as a trivial exercise to the reader.

  10. Why the CAPTCHA Approach Is Doomed ?!?! by Phizzle · · Score: 2, Funny

    Because my Lynx browser doesn't support it!

    --
    I will not be pushed, filed, stamped, indexed, briefed, debriefed or numbered. My life is my own.
  11. My method is fool proof! by hofmny · · Score: 2, Funny

    I don't understand why we still use CAPTCHA's or Kitty tests. I have been using a method on my service providing site for the past 5 years that fools any bot.

    I simply state "Are you Human" yes/no.

    You wouldn't believe the amount of success I have since I took down the earlier CAPTCHA technology I was using.
    Almost immediately, the amount of customer emails I get daily increased 453%! Many of these customers were offering me things, such as money or drugs! I was also able to buy Viagra at near wholesale prices (and then turn them for a profit on my business trips to Florida).
    My traffic has increased too! The amount of people using my free service almost took down my servers. I had to get 3 more! Of course, I am now operating at a loss, but I sleep well knowing that I made a difference in the world by letting so many people access my great service.

    If anyone wants the "are you human" technology from me, I will give it away for free! Just email me. Thanks!

  12. Re:So what next? by silent_artichoke · · Score: 5, Funny

    Pardon me, but I do believe that Natalie Portman can be both a pet AND a tasty treat.

  13. soo... by blondie.xo · · Score: 2, Funny

    Is this like those things that pop up and ask you to type in what it says? Like letters and numbers? example: htyeopa9876hg.. but it's all fuzzy and you have to try and figure it out?

  14. Re:So what next? by ch33zm0ng3r · · Score: 4, Funny

    Well you know what they say: "You can't have your Natalie Portman and eat her too..." ...or something like that.

  15. Re:So what next? by Anonymous Coward · · Score: 1, Funny

    pay-to-play-posting + bot-net = spam unabated + billions in charges to hapless consumers.

    No. You are wrong. It will make people start charging spammers to use their computer in a bot net. Trickle down dude!

  16. Re:8==C=A=P=T=C=H=A==D by Dishevel · · Score: 2, Funny

    Then I have no idea how you would explain This.

    --
    Why is it so hard to only have politicians for a few years, then have them go away?
  17. Re:So what next? by Anonymous Coward · · Score: 2, Funny

    Place Goatse on the front page.....Behold, you have isolated the set of spambots from the set of humans.

    I think you meant to say "isolated spambots and 4channers from the set of humans".

  18. Re:So what next? by smellsofbikes · · Score: 2, Funny

    Oh yes you can, depending on your definition of 'to eat'...

    Which reminds me of the old joke. guy's out driving in the country and he sees a pig with a wooden leg. He thinks that's weird so he goes up to the house and says "hey, I was wondering about the pig with the pegleg" and the farmer says "oh, man, let me TELL you about that pig -- he goes and gets the mail for me, he guards the house, he bites burglars, I'm even training him to drive my lawnmower!"
    "Okay, that's cool," says the guy, "but what about the artificial leg?"
    "Well, DUH," says the farmer, "a pig that smart you don't eat all at once!"

    --
    Nostalgia's not what it used to be.
  19. Re:So what next? by Anonymous Coward · · Score: 1, Funny

    That would also filter me, 4chan, Something Awful etc. out. Not acceptable (except for the quality of the website, maybe).

  20. Re:So what next? by arth1 · · Score: 3, Funny

    I think you meant to say "isolated spambots and 4channers from the set of humans".

    You repeat yourself.

  21. Re:UN solution by Anonymous Coward · · Score: 1, Funny

    Yeah, I'm sure they'll get right on that. They did such a great job with Cuba, Iraq, Afghanistan, North Korea, China, ....

  22. Re:Economics of human CAPTCHA-solving by clone53421 · · Score: 2, Funny

    sweatshop ... paying roughly $5/hour

    You're doing it wrong.

    --
    Alexander Peter Kristopeit bought his basement from his mommy for one dollar.