I've had a lot of luck making custom forms using contact plug-ins that have a lot of unusual and useful fields but now I have a kind of unusual need: A form where someone would enter a credit card number. It doesn't need to process the credit card or anything like that, just store it or convey it to the administrator of the site. I don't feel that using a standard email contact plug-in is secure enough for this use. So what are my options? I see the following factors as possibly being elements of this:
1) Housing the site or part of the site on a secure server
2) Somehow using a secure email system for submitting the info
3) Storing the submissions in WP for the administrator to view without emailing it.
Anyone have any thoughts on this?