What are the key principles around payment data and systems integrity when providing Open Banking services?

Payment Service Providers (<a href="/glossarycollection/payment-service-provider" style="color:#48277C;" target="_blank" title="Payment Service Provider"><u>PSP</u></a>) need to ensure that the collection, routing, processing, storing and visualisation of their sensitive payment data is adequate, relevant and limited to what is necessary for the provision of its payment services.