Need suggestions/ideas for easy-to-use but secure captchas -

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To get started with

, I know very well about the safety / disposable trade-off associated with the captains and There is no explanation about that.

I know that recapture is the latest in captcha technology but we do not want to use it for our site to provide distortion words to our site to provide live online classes. Is a study portal for students, so users will be the student (leaving the certificate level) and the teacher.

I am searching for different ideas and some good people like: -

  • Sesame Street Solutions

  • Asking questions that are "very easy for humans", such as "who tastes better" but how many such questions do I need to keep safe?

My objective to ask this question is to get as much thoughts as possible. I think there are still many user-friendly but safe ways that I can analyze before finalizing.

Please highlight the pros and cons of the method, suggesting in the context of the work of spam bot. I do not know much about my strengths and weaknesses.

Thanks,

Sandeeping

Reading distorted words There is one thing, but also to ask that legal users can be quite upset to enter. So it's important that you do not burden users with anti-spam measures .

Damien Cottage has used to stop spam bots. This technique, also called the Honeypot field, is easy to implement and the user does not need to do anything.

There is a more complex Honeypot implementation that includes the name of the random area in it and there are cool prices to ensure that the bot did not tamper with the form.

In his article, he mentioned the following:

Spammers software that can post in any form, they create software that is posted on many forms Could.

So it only takes simple moves to confuse the majority of spam bots, a bit more magic will take care of the remaining bots.

About Sesame Street Solutions, by asking simple questions or selecting the right animal from the list: These are questions that are difficult for spam bots to answer, but they are also for users. Can be difficult Especially if you have an international audience in your site, then people with other languages ​​other than English may have trouble understanding the question, this may not be an issue with your student audience, but it There is something to keep in mind.


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