A PA-DSS validation is only applicable to the operating system(s) upon which the application was assessed, as reported in the ROV and as listed with the application on the PCI …
PCI DSS Requirement 12.9 applies only if the entity being assessed is a service provider. Merchants and other entities that use service providers should review PCI DSS Requirement 12.8 and …
There is a distinct difference in terms of payment acceptance between Direct Post & iFrames/redirects, which is why there are different SAQs. In a Direct Post implementation, the merchant website …