Your cell phone company knows your name, address, and can infer where you've been based on the cell towers your phone checks in with. So that one's a given. He

Your cell phone company knows your name, address, and can infer where you've been based on the cell towers your phone checks in with. So that one's a given. Here's a sampling of others: Mastercard sells information on your purchases.[^1] (Based on the info Oracle had on me, I suspect they might be one of the sources for Oracle Advertising.[^2]) Equifax, who gets information from your bank, your car insurance company, your cable company, and loads of other places, makes a nice profit off selling your info.[^3][^4] ISPs know who you are, can infer a lot about you from unencrypted DNS queries and HTTPS SNI snooping, and they're happy to sell information about you.[^5] Then there are several tiers of companies that buy information from various other companies, aggregate it, and then sell that off. A veritable snowball rolling down a hill of privacy violation. [1]: https://www.wired.com/2012/10/mastercard-data-mining-holidays/ https://www.wired.com/2012/10/mastercard-data-mining-holiday... [2]: https://datacloudoptout.oracle.com/request-your-data/verify-identity https://datacloudoptout.oracle.com/request-your-data/verify-... [3]: https://www.inc.com/associated-press/equifax-data-money.html https://www.inc.com/associated-press/equifax-data-money.html [4]: https://www.equifax.com/about-equifax/why-equifax/differentiated-data/ https://www.equifax.com/about-equifax/why-equifax/differenti... [5]: https://www.vice.com/en/article/93b9nv/internet-service-providers-collect-sell-horrifying-amount-of-sensitive-data-government-study-concludes https://www.vice.com/en/article/93b9nv/internet-service-prov...