The FTC released a staff report in 2021 analyzing the privacy practices of six major U.S. Internet Service Providers. The report found that these ISPs collect as much, if not more, data on their customers' browsing habits than popular advertisers like Google and Facebook. Additionally, some of these ISPs either operate their own advertising businesses or sell the data to third parties, such as the NSA.
In 2017, Trump revoked regulations put in place by the Obama administration that would have compelled ISPs to obtain user consent before selling their browsing data.