there is a new report about privacy violations resp. the data abuse business regarding mobile apps and webservices available:
it’s a very interesting report, because it isn’t only focused on the practices of a few huge monopolists, which are often seen as the only menacing enemy here in the /e/-community, but describes the actual data gathering and exchange resp. exploitation activities of much less known players in this field in detail.
there are also some press reports about this study and its consequences already available:
https://www.politico.eu/article/grindr-online-ad-firms-face-norwegian-privacy-complaint/
https://www.nytimes.com/2020/01/13/business/grindr-apps-dating-data-tracking.html
https://www.heise.de/newsticker/meldung/Norwegische-Verbraucherschuetzer-DSGVO-Beschwerde-gegen-Grindr-4637211.html?seite=all