Why does captcha exist

Instead of a bulky questionnaire, users had only to click a button to identify themselves as human. If someone fails to input the correct password one too many times, for example, the box would appear, or users would have to undergo more rigorous security checks.

Honeypots are extra bits of code used to catch bots without users knowing that they exist. The most common example of this is the hidden form field. Bots, however, will still recognize the field as legitimate and fill it out. The computer the test is run on has been used for human activities like checking email, checking eCommerce sites, and other marks of human behavior, usually given away by the cookies stored on the device. As shown before, there are differences between the two.

We provide both options with our form builder — so rest assured that you can pick whichever option suits you best. If the idea of pestering all of your users with annoying questions is what troubles you, we suggest the anti-spam honeypot method. In our contact form builder , you can do this by following these steps:.

Since spambots do see that field, they will likely fill it in. When that happens, the rule you have just set up will be triggered since the field will not be empty anymore and the bot will not be able to submit the form anymore. I am very much human; thank you very much. What I want to do is write a script that will generate a random string of both letters and numbers, with the ability to set a limit on how many characters are generated.

Please go back and try again. I haven't yet tried it myself, because I don't know how to generate random strings of characters, but I was just wondering if perhaps I'm on the right track? Hello everybody, I am new to these forums and registered due to my problems which has been annoying me all the evening I've been googling for 3 hours and still haven't found a proper answer.

The situation is: I started to use session in my page. Thanks in advance. The message keeps getting sent. Is there any way that I can add random images? Here is insert. How do I go about doing this? If something else needed to read or understand that phrase, it would be done differently. That is the answer to the question.

In my opinion such explanations have more to do with ' corporate language ' or ' branding ' and how you want to address your audience than with the question, whether the audience is expected to be familiar to the concept, or not.

The fact that robots won't 'care' about that explanation has nothing to do with the original purpose of that message: explaining the human user what to do. Sign up to join this community. The best answers are voted up and rise to the top.

Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Why say "verify you're a human" when only humans can read it?

Ask Question. Asked 7 years ago. Active 5 years, 9 months ago. Viewed 11k times.