Worth noting Heartland Payment Systems and RBS Worldpay have been removed from Visa Inc.'s list of PCI compliant service providers and will have to undergo new PCI assessments and reapply for inclusion on the compliance list, according to a Visa announcement.
Visa's action came after the two companies revealed they were victimized by hackers who managed to plant malicious software in the companies' internal processing systems and steal card data from the unencrypted data stream. Heartland had been listed as under review -- but still compliant -- prior to Friday's announcement, but now Visa has removed the Princeton, N.J.-based company from its lengthy list of service providers compliant with the Payment Card Industry Data Security Standard (PCI DSS). It was unclear whether RBS also had been under review.
This was noted on the ETA Compliance Portal and it looks to be a very helpful resource. Here is some of the information.
PCI Security Standards Council Information
For list of validated applications click here
The OCS DSS Quick Reference Guide is located here pci_ssc_quick_guide.pdf
The ETA Compliance portal is located at http://www.electran.org/content/view/535/211/