@kyle mastercard sells realtime transaction data: https://www.mastercardservices.com/en/data-analytics
There was some way to opt out per card, but you need to look that up.
@ehowell @setthemfree I don't know. While there are many issuers for credit cards, there are only a few networks (Visa/MC/AMEX/Discover/etc) so even if your issuer doesn't sell your data (the one I built infrastructure for didn't), if the network does (as this thread shows MC does) there's not much you can do.
With a strictly debit card (no CC features) I suppose the issuing bank and/or company managing the card infrastructure could offer #privacy for you.
There's also always cash :)
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