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A comment on Quora User Data Compromised. Parent comment

Re:Quora User Data Compromised by mook on Tuesday December 04, 2018 @12:00AM (#18596418)
Wouldn't the bank still know your full purchase history (since they know what numbers are tied to you)? So they'd in fact get a leg up on the competition, who get a more distorted view?
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Re:Quora User Data Compromised by mbreese on Tuesday December 04, 2018 @01:17AM (#18596816)
But they don’t get the invoices of what you bought, just the total payment amount.
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Re:Quora User Data Compromised by woolvalley on Tuesday December 04, 2018 @03:35AM (#18597530)
Unless they work with an analytics system that mastercard, visa & amex participate in to link card numbers to invoices for better advertising & affiliate data.

I know FB & Google purchase something like that from one or two credit card companies, so I wouldn't be surprised if merchants were in to it too.

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