https://www.vice.com/en_us/article/jged4x/envestnet-yodlee-credit-card-bank-data-not-anonymous

Yodlee, the largest financial data broker in the U.S., sells data pulled from the bank and credit card transactions of tens of millions of Americans to investment and research firms, detailing where and when people shopped and how much they spent. The company claims that the data is anonymous, but a confidential Yodlee document obtained by Motherboard indicates individual users could be unmasked.

The findings come as multiple Senators have urged the Federal Trade Commission (FTC) to investigate Envestnet, which owns Yodlee, for selling Americans' transaction information without their knowledge or consent, potentially violating the law.