Google will use credit-card transaction history to determine if online ads are working. Photo: Alamy Google will use credit-card transaction history to determine if online ads are working. Photo: Alamy
Google will use credit-card transaction history to determine if online ads are working. Photo: Alamy

Google data mine digs into credit card privacy

Company’s new system tracks credit card transactions to work out whether online adverts are influencing purchases both on the web and in offline stores

Google will use credit-card transaction history to determine if online ads are working. Photo: Alamy Google will use credit-card transaction history to determine if online ads are working. Photo: Alamy
Google will use credit-card transaction history to determine if online ads are working. Photo: Alamy
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