I'm using this payment processor that only allows me to "redirect" the buyer after they purchase to an unsecure thankyou page of my site. On that page I need to somehow deliver the login ID and password they need to login. But I don't want to just post it on that unsecure thankyou page where anyone can access it. How can I work with this "thankyou" page in order to still deliver the customers login ID and password in a secure way?
There are several ways to do this. 1. Search for a IPN script that supports your payment processor. 2. Don't call your "thank you page" for "thanks.html" or "thankyou.html". Use a random name like "thankx34ref32.html" or something like that. 3. Use your robots.txt to prevent search engines indexing that specific folder.