JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
I suggest you review also the user guide on -How-can-I-receive-SSL-Submissions
To simplify also, the communication channel will be secure if you use the secure URL.
BUT it does NOT do any encryption on the form (i.e. email, form source code).
So, if another person is able to open the form, they will be able to see in plain text only the emails and codes in the form.
The payment integration you will use in the form is encrypted in a way because it will not be in JotForm. It will actually be the payment gateway/processor that will be doing the payment process.
Hope this help. Let us know if you need further assistance.
You are quite welcome. =)
Contact us again anytime should you need further assistance.