the walls have ears
Mar. 10th, 2006 11:27 amYesterday I got a statement from my credit-card company. It was a transaction summary for 2005; I've never seen this sort of thing before. The front page informed me that last year I spent $X on food, $Y on entertainment, $Z on professional services, and so on for about 15 broad categories. That's the sort of thing that could be useful if you don't think about it -- but I'm the kind of person who thinks about it.
I'm not sure which possibility is more disturbing: that they are making inferences based on who the payee is (Giant Eagle sounds like groceries, etc), or that the merchants are providing the credit-card companies with categories for the transactions.
My record-keeping is not thorough enough for me to figure out which is more likely on my own. Perhaps I will ask them.
When I use a credit card I fully expect that the particulars of the transaction -- date, amount, and merchant -- are not private and might be mined. If it's really important to me, I pay cash. But I do not expect a description, even a high-level one, of the goods or services purchased to be part of that record.
I'm not sure which possibility is more disturbing: that they are making inferences based on who the payee is (Giant Eagle sounds like groceries, etc), or that the merchants are providing the credit-card companies with categories for the transactions.
My record-keeping is not thorough enough for me to figure out which is more likely on my own. Perhaps I will ask them.
When I use a credit card I fully expect that the particulars of the transaction -- date, amount, and merchant -- are not private and might be mined. If it's really important to me, I pay cash. But I do not expect a description, even a high-level one, of the goods or services purchased to be part of that record.
(no subject)
Date: 2006-03-10 11:01 pm (UTC)