I work for a large retailer ecommerce office and over the years found the business purchase huge lists of subscriber names plus domains from ISP customer browsi

I work for a large retailer ecommerce office and over the years found the business purchase huge lists of subscriber names plus domains from ISP customer browsing. Att and Verizon selling that I know about, maybe more that I dont know. With the amount of money involved that Im sure they aren't happy.