Sources
[Flo] proved themselves rather untrustworthy when they got called out by the Federal Trade Commision in 2021 for the sharing sensitive health information of their users with advertising and marketing companies, including the likes of Facebook and Google, after promising not to.
Bureau of Investigative Journalism:
eight women discovered their most private health information – details about menstruation, ovulation, pregnancy attempts and sexual health – had been “surreptitiously transmitting” to Meta through a hidden tracking tool embedded in the app.