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by corkybeta 973 days ago
cardholders Mastercard thinks will be “high-value”—predictions used to target certain people and encourage them to spend more money.

Sorry, I don't understand, perhaps because I am in the UK not US. My bank issues my Mastercard, so I don't have a direct relationship with them. How would they target me?
2 comments
louloulou 973 days ago
You are using Mastercard's payment network whenever you pay for something. They see and record all your transactions. Mastercard is the entity informing your bank to pay the merchant's bank.
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maronato 973 days ago
Yes, but how is Mastercard encouraging me to spend more? In my day to day, it matters little which payment network I use since that’s abstracted away by the bank’s interface. What opportunity does Mastercard have to target me?
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winter_blue 973 days ago
They sell your transaction data to Google. When merchants provide Level 3 information (line items), Google can now know exactly what you're actually spending your money on.

Then, Google can show you super-relevant ads, that might encourage you to spend even more.

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lxgr 973 days ago
Presumably they could tell stores that you have your card on file with? (Only speculating; I have no idea if they or any other card network actually does that.)
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conception 973 days ago
Offering lower interests rates as a promo, higher limits, low interest loans, bonus points from certain brands/categories, offering new types of cards, etc etc
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semiquaver 973 days ago
Read OP’s comment again. Mastercard is not a card issuer, they can offer none of the things you mentioned.

The answer to OP’s question, of course, is that Mastercard doesn’t make use of the information it has directly. It sells the information to interested parties like Google and other advertisers. This is the behavior EFF is objecting to.

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Lio 973 days ago
My worry is that that merchants offer higher prices based on their assessment of my private data.

We've had the situation before when booking holidays that my wife sees higher prices for the same hotel on her laptop while sitting right next to me. Once she cleared cookies the price went down to match what I've been offered on a clean computer.

That was a few years ago so I would imagine IDing potential customers is done via browser finger printing now rather than cookies and so harder to protect against.

Really, who wants their bank or payment network to collude in higher prices?

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