Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • World
  • Users
  • Groups
Skins
  • Light
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (No Skin)
  • No Skin
Collapse
Code Project
  1. Home
  2. Other Discussions
  3. The Weird and The Wonderful
  4. Uncheck this if you are not a bot

Uncheck this if you are not a bot

Scheduled Pinned Locked Moved The Weird and The Wonderful
13 Posts 8 Posters 0 Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • P PIEBALDconsult

    Ah, that was so much easier than trying to figure out a captcha. :laugh:

    You'll never get very far if all you do is follow instructions.

    D Offline
    D Offline
    dan sh
    wrote on last edited by
    #3

    Was it like this? Uncheck □ this -> □ if □ you □ are □ not □ a bot □.

    My CP workspace: Incredibly trivial and probably useless code samples[^]

    P 1 Reply Last reply
    0
    • D dan sh

      Was it like this? Uncheck □ this -> □ if □ you □ are □ not □ a bot □.

      My CP workspace: Incredibly trivial and probably useless code samples[^]

      P Offline
      P Offline
      PIEBALDconsult
      wrote on last edited by
      #4

      No, just the one checkbox.

      You'll never get very far if all you do is follow instructions.

      1 Reply Last reply
      0
      • B Brisingr Aerowing

        And where is this? Oh, and :doh: :sigh: :wtf: :~ X| :laugh: :^)

        What do you get when you cross a joke with a rhetorical question?

        P Offline
        P Offline
        PIEBALDconsult
        wrote on last edited by
        #5

        It's on a website my kid sister probably doesn't frequent.

        You'll never get very far if all you do is follow instructions.

        1 Reply Last reply
        0
        • P PIEBALDconsult

          Ah, that was so much easier than trying to figure out a captcha. :laugh:

          You'll never get very far if all you do is follow instructions.

          B Offline
          B Offline
          Bernhard Hiller
          wrote on last edited by
          #6

          Can't find it with Google. Is the most relevant result hidden from me?

          1 Reply Last reply
          0
          • P PIEBALDconsult

            Ah, that was so much easier than trying to figure out a captcha. :laugh:

            You'll never get very far if all you do is follow instructions.

            D Offline
            D Offline
            Dennis_E
            wrote on last edited by
            #7

            Wow, that's very ... uhm ... secure. :cool: I once came across a site where they showed a series of pictures with checkboxes and you had to check all the vehicles and leave the rest unchecked. Try writing a bot for that.

            J OriginalGriffO 2 Replies Last reply
            0
            • D Dennis_E

              Wow, that's very ... uhm ... secure. :cool: I once came across a site where they showed a series of pictures with checkboxes and you had to check all the vehicles and leave the rest unchecked. Try writing a bot for that.

              J Offline
              J Offline
              jesarg
              wrote on last edited by
              #8

              Algorithm: Randomly check or uncheck each box. If there's five pictures, then you'll successfully bypass the security 1/32 times. Bots have infinite patience, and checkbox-based security can usually be brute-forced.

              P D 2 Replies Last reply
              0
              • J jesarg

                Algorithm: Randomly check or uncheck each box. If there's five pictures, then you'll successfully bypass the security 1/32 times. Bots have infinite patience, and checkbox-based security can usually be brute-forced.

                P Offline
                P Offline
                PIEBALDconsult
                wrote on last edited by
                #9

                jesarg wrote:

                1/32 times

                Are you assuming exactly one vehicle? I assumed that any, all, or none would meet the criteria. Whoops, no, I see it now, sorry.

                You'll never get very far if all you do is follow instructions.

                1 Reply Last reply
                0
                • J jesarg

                  Algorithm: Randomly check or uncheck each box. If there's five pictures, then you'll successfully bypass the security 1/32 times. Bots have infinite patience, and checkbox-based security can usually be brute-forced.

                  D Offline
                  D Offline
                  Dennis_E
                  wrote on last edited by
                  #10

                  There were about 30 pictures perhaps. If you only allowed a few tries before it locked up, it would be pretty secure, I suppose. (I'm not an expert) But nothing is 100% secure of course.

                  J J 2 Replies Last reply
                  0
                  • D Dennis_E

                    There were about 30 pictures perhaps. If you only allowed a few tries before it locked up, it would be pretty secure, I suppose. (I'm not an expert) But nothing is 100% secure of course.

                    J Offline
                    J Offline
                    jasonHall
                    wrote on last edited by
                    #11

                    I thought this forum consisted of only experts! ;P (then I ask myself why would I be here then!)

                    1 Reply Last reply
                    0
                    • D Dennis_E

                      There were about 30 pictures perhaps. If you only allowed a few tries before it locked up, it would be pretty secure, I suppose. (I'm not an expert) But nothing is 100% secure of course.

                      J Offline
                      J Offline
                      jesarg
                      wrote on last edited by
                      #12

                      If you display a lot of pictures at once, then the system becomes just as annoying to users as a captcha. Also, you'd have to maintain a large and constantly-changing database of pictures to keep the bot from memorizing which pictures are the vehicles. In any case, defeating the bots is a much bigger task than people realize. If bot writers are willing to create advanced algorithms capable of deciphering a captcha, then they are willing to go to great lengths to defeat other security features, too.

                      1 Reply Last reply
                      0
                      • D Dennis_E

                        Wow, that's very ... uhm ... secure. :cool: I once came across a site where they showed a series of pictures with checkboxes and you had to check all the vehicles and leave the rest unchecked. Try writing a bot for that.

                        OriginalGriffO Offline
                        OriginalGriffO Offline
                        OriginalGriff
                        wrote on last edited by
                        #13

                        I've seen that with "Kittens" and "Puppies" as well - very damn annoying!

                        Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952) Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)

                        "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
                        "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

                        1 Reply Last reply
                        0
                        Reply
                        • Reply as topic
                        Log in to reply
                        • Oldest to Newest
                        • Newest to Oldest
                        • Most Votes


                        • Login

                        • Don't have an account? Register

                        • Login or register to search.
                        • First post
                          Last post
                        0
                        • Categories
                        • Recent
                        • Tags
                        • Popular
                        • World
                        • Users
                        • Groups