Data brokers like Sift and Kustomer, which share consumers' est. lifetime value with companies, now share it with customers on request due to new privacy laws (Kashmir Hill/New York Times)

Kashmir Hill / New York Times:
Data brokers like Sift and Kustomer, which share consumers' est. lifetime value with companies, now share it with customers on request due to new privacy laws  —  Little-known companies are amassing your data — like food orders and Airbnb messages — and selling the analysis to clients.

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