Sources: Google, via a deal with Mastercard, gets data that lets it match clicks on retailer ads to purchases in offline stores; Google says data is anonymized (Bloomberg)

Bloomberg:
Sources: Google, via a deal with Mastercard, gets data that lets it match clicks on retailer ads to purchases in offline stores; Google says data is anonymized  —  Google found the perfect way to link online ads to store purchases: credit card data  —  For the past year …

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