Oh, Mastercard and Visa do this systematically. You get redirected to a site whose name I can't remember, that has no apparent relationship with either Visa or

Oh, Mastercard and Visa do this systematically. You get redirected to a site whose name I can't remember, that has no apparent relationship with either Visa or Mastercard, that asks you to input some piece of personal info. I've sometimes aborted purchase transactions with significant value on being confronted by that challenge. It's a bit like handing your card to a teller, inputting your pin, and then the teller passing you on to some rando asking personal questions.