In the complaint, the FTC alleges Flo told users their information would be kept private. Then it shared their sensitive health data, including the dates of their periods and their pregnancy plans, with outside companies that provided marketing and analytics services to the app. It also failed to limit how this data would be used.
Now that it was announced today Fitbit is officially part of Google, those binding privacy agreements will also need to be adhered to. Data does not get shared for the sake of sharing, it's because it holds real value.