I'm curious as well. I mean, it might not be '600' (although as commented by others, that doesn't mean your particluar account data hits all 600 of them), but a

I'm curious as well. I mean, it might not be '600' (although as commented by others, that doesn't mean your particluar account data hits all 600 of them), but at least something should get shared somehow to complete any type of payment? If not just for the receiving party? And what information exactly do they get?