which means has to have ssl fully set up and running with https not http
theirs a few things in some plugins and in the oxwall script that break the site lock so https does not work
and need to be fixed
some interesting bits from this page
http://www.mijireh.com/...bout-pci-compliance/
Anyone who has a business that receives payments from customers who use their credit cards to pay needs to be PCI compliant – even if you only receive one credit card payment per year. The volume of transactions does not make a difference. Even if your website uses a 3rd party service like PayPal, Google Checkout, or Mijireh you still need to be PCI compliant because your business (not necessarily your website) receives payments via credit card.
What if I am not PCI compliant?If you do not meet the PCI standards for compliance and the security of your site gets compromised, you will be facing penalties and fines ranging from $5,000 to $500,000. The fines, however, are just the beginning of the overall damage caused by noncompliance.
If your website or company are not PCI compliant, you run the risk of losing your merchant account, which means you won’t be able to accept credit card payments at all. You will also be placed in the Visa/MasterCard Terminated Merchant File (TMF), making you ineligible to obtain another merchant account, at least for several years. The TMF, is essentially a BLACKLIST from which it is almost impossible to be removed.
Explanation of Section 1.3: The cardholder data environment includes all components of your website including the database. For most websites, including WordPress websites, this involves your web server and your database server. This requirement means that your database server must be on it’s own, physical server – not on the same box as your web server – and that you must connect to it over a Virtual Private Network. Using PHPMyAdmin, for example, is not a PCI Compliant way to manage a database.