How do they know what specific items were purchased? Is there any way for a cons... | Hacker News

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buttsex on July 3, 2014 | parent | context | favorite | on: Hospitals Are Mining Patients' Credit Card Data to...

How do they know what specific items were purchased? Is there any way for a consumer to see their own data on that? Also, seems like there would be a lot of false positives as I don't consume or use everything I buy with my card.

esw on July 4, 2014 [–]

They mentioned rewards cards, like the kind used at grocery and drug stores.

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