Is it imperative to use captcha in the form?

1

I am completing a registration form, and I took some precautions against SQL injection. And for an aesthetic question, I would not like to enter a captcha.

The form in question is for user registration, which will be logged in later.

My concern is that I had an experience, which I believe falls under the term "flood", where I kept receiving several records of the same type, and since I had no data processing, the robot would send some links ...

I run some risk by not inserting it, is it imperative?

    
asked by anonymous 13.06.2016 / 19:40

1 answer

1

Well it's your choice, you can suffer an attack, several bots making multiple requests at the same time, believe it happens until a small server that I have gone through.

You can do the following: Limit the number of times a given ip can use the form. If a certain user uses the form 5 times in a row you show a captcha for him, only shows if he filled out and made the request several times.

    
13.06.2016 / 19:44