I am working on payment module which includes credit card transaction.
I have a domain FOOXYZ.COM (IP: x.x.x.x) which is secured with SSL and I can access it with https://fooxyz.com
Now in fooxyz.com I have a page payment.php https://fooxyz.com/payment.php
In payment.php I am accessing an IFRAME and the source of this iframe is at BARxyz.COM (ip: y.y.y.y)
Means payment.php page at FOOxyz.COM includes
<IFRAME src="http://barxyz.com/bar_payment.php">
Now I want to know is this secure method for online transaction or is it breach of security do I need to secure BARxyz.COM also ???
So that I would use
<IFRAME src="httpS://barxyz.com/bar_payment.php">
Waiting for valuable response, thanx in advance