If a company has your first name, last name or other information, they can send it to Facebook

Large corporations are buying this data, and even governments

https://www.fastcompany.com/90310803/here-are-the-data-broke...

https://www.propublica.org/article/everything-we-know-about-...

https://www.dli.tech.cornell.edu/post/facebook-and-google-ar...