> At the same time, we require merchants to have appropriate controls to ensure Mastercard cards cannot be used for unlawful purchases, including illegal adult content.

This part is doing all the work. They aren't going to spell it out for you. But you can read this great ACLU filing that explains, in detail, what they are intentionally glossing over when they say "appropriate controls". https://www.aclu.org/documents/federal-trade-commission-comp... (Federal Trade Commission Complaint - MasterCard, Inc.

Document Date: August 30, 2023)