Amazon and Chase Will Not Give Me a Straight Answer About What They Do With My Credit Card Data

Image: Chase Bank

Whenever I go out to dinner with a bunch of friends, and we split the check, multiple people wind up throwing in those heavy, slate-grey credit cards bearing Amazon’s smiley arrow.

Almost everyone I know has the Amazon Prime credit card because it comes with a killer rewards program, especially if you’re an Amazon Prime member—five points for every dollar you spend at Amazon and Whole Foods, and two points for most dollars spent elsewhere. There are lots of “co-branded” cards out there, for other retailers, all the airlines, hotels, even sports teams—but given how often we’re all buying stuff on Amazon, which is estimated to account for 50 percent of all online commerce in America, we’d be crazy not to use it. Many of us use the Amazon card for all of our purchases, on and off Amazon. But what’s the cost to our privacy?

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For an experiment I recently did, cutting Amazon out of my life, I wanted to find out what exactly Amazon learns about me when I use the Amazon Rewards Visa Signature card from Chase. I looked at my cardholder agreement and its attendant privacy policy, but neither said, so I asked both Amazon and Chase Bank. Disturbingly, neither company would tell me, exactly.

People worry about how much Google and Facebook know about them, but Amazon is increasingly sucking up incredible amounts of data about individuals, too, such that it knows if you’re friends with the person whose book or product you’re reviewing. Amazon already knows what we’re buying on Amazon and in Whole Foods. What if it knows what we’re buying everywhere else too? Knowing what everyone buys every day is powerful for predicting their future behavior and further monetizing them (as other tech giants well know). Amazon could use insights into what people are buying from other businesses to better compete with those businesses and increase its stranglehold on the American economy.

So what does Amazon learn about me when I use this card?

Amazon’s spokesperson, Andrea Ruge, hopped on the phone with me to understand exactly what I wanted to know and said she would get back to me. Then, after I sent a couple of emails asking if she had information for me, she responded, “Apologies for the delay on this. I don’t have anything to share re: your Chase card question below.”

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I was surprised and annoyed that Amazon couldn’t answer a question that’s not particularly difficult or unreasonable: What does Amazon learn about people who have Amazon Prime credit cards?

Chase is the issuing bank, so it is the controlling party. I sent the bank’s spokesperson, Mary Jane Rogers, a few emails before I got a response. She sent me boilerplate privacy materials about the cards the bank issues and apologized. “Sorry, this is as specific as I am able to share,” she wrote in an email that left me feeling even more spooked about what Amazon knows about me.

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Rogers said this would be “of most interest” to me and pasted it into the email:

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I asked what category fits a “co-brand partner,” which is Amazon’s official designation. Was it an “affiliate” that gets “information about your transactions and experiences,” personal information whose “sharing” cannot be limited?

“Yes, I’m confident it’s that one,” Rogers wrote back.

So I emailed Ruge again asking if it was true that Amazon was getting information about my “transactions and experiences,” which I took to mean everything I buy with the card and how much I spend, giving Amazon insight into people’s spending outside of Amazon.

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“Since we don’t comment on rumors and speculation, there’s not a ton I can provide here,” Ruge wrote back. “However, I can tell you that we are not an ‘affiliate’ Chase [sic] and these details are inaccurate. Unfortunately, that’s all I can share at this time.”

Okay but that’s what Chase, Amazon’s ostensible partner, had told me. I wrote back, expressing my frustration.

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Rightly pointing to the definition of “affiliate” on Chase’s page, which defines it as a company owned or controlled by JPMorgan Chase, Ruge said that’s not what Amazon is. She said my conjectures about what information Amazon was getting were inaccurate. “Unfortunately I cannot share anything beyond that,” she ended her email.

I’ve had an easier time getting information out of a spy agency. I turned to experts on credit cards for help. They were all stumped, too.

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The National Consumer Law Center said data-sharing agreements between companies that issue credit cards together are private, and that only the companies could tell me. Other experts said the same thing.

“The information sharing between AMZ and JPM would be a feature of their contractual agreement with each other and not something I would know,” said the U.S. Pirg’s consumer director Ed Mierzwinski.

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Ted Rossman, an analyst at Creditcards.com, was also stumped. “I suspect there is a lot of data that they are mining from this,” he speculated.

Rossman pointed me to a blogger, the Finance Buff, who, he said, “used to work in co-branded cards,” who wrote that “the co-branding partner also gets aggregated data from the issuer on the customers’ demographics and their shopping behavior. The data help the partner market its products.”

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But when I reached out to the Finance Buff, Harry Sit, he, too, had no idea what data Amazon gets.

It was a very unsatisfying hunt for an answer, but there’s a clear takeaway: If you have the Amazon Prime Chase card and you’re worried about Amazon getting more data about you, only use it to buy things from Amazon and Whole Foods. Amazon knows what you’re buying there either way.

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About the author

Kashmir Hill

Kashmir Hill is the deputy editor for the Special Projects Desk, which produces investigative work across all of Gizmodo Media Group's web sites. She writes about privacy and technology.

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