Mobile Payment Security in PCI DSS 4.0.1: In-App Purchase Protection vs Web Checkout
Nearly 70% of online purchases now happen on mobile, yet PCI scoping decisions are still often made as if mobile is just a smaller browser. It is not. A native in-app payment flow and a mobile web checkout trigger materially different obligations under PCI DSS 4.0.1. In one case, risk concentrates inside the application runtime through SDKs, platform storage, and release controls.