Meeting SAQ-A-EP Requirements 6.4.3 and 11.6.1 on Hosted Payment Pages
The skimmer doesn’t go inside the iframe. It doesn’t need to. In every significant payment page compromise of the last decade, the malicious code sat on the merchant’s page, outside the payment component entirely, watching form submissions, intercepting keystrokes, reading values before they ever reached the provider’s sandbox. This is the architecture SAQ A-EP merchants live in.