Your Financial Transaction Data is the Holy Grail for Advertisers

Man holding a credit card

Over the past decade, our financial transaction data has become one of the most sought-after data sets. Credit card processors like American Express, Mastercard, and Visa are at the center of it.

All of this is happening under a veil of secrecy. Credit card companies may acknowledge that they make money from analyzing transactions, but they are vague about what data they actually share […] Even Apple, which prohibits Goldman Sachs from using its card data for marketing purposes, couldn’t get the same concessions out of Mastercard, its card network.

Here’s a link to the study mentioned in the article, where MIT researchers successfully de-anonymized financial data that these companies claim had privacy protections.

Check It Out: Your Financial Transaction Data is the Holy Grail for Advertisers

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