Samsung's own privacy policy and those of the 3rd parties they use. It's been over a year and checking now some things have already changed, but if you click on the gear icon from within the keyboard you can select "about sumsung keyboard" which should give you a list of policies including gify and tenor (both used for gifs I guess) but i didn't even check those. The one you want is the legal info which tells you that in addition to samsung's privacy policy (which outright says it's collecting and selling everything it can get their hands on (see https://www.computerworld.com/article/3514999/samsung-sellin...) you also have to accept the policy of a 3rd party called Nuance which they use for "language data".
The wall of legal text there eventually links to their privacy privacy which opens in the browser. They collect and store things like "your choice of words, speech and writing patters, how you use your keyboard, custom words you add, the number of charters you type, your typing speed, etc. and they share (read sell) that data to affiliates, subsidiaries, vendors, subcontractors, etc (pretty much anyone they feel like). They specifically state they use this data to draw inferences reflecting your characteristics, behavior, abilities, preferences and aptitudes all of which they can sell to anyone at any time without even telling you about it because what they learn about you by going over all your data is their data and they don't have to tell you anything at all about what they do with their data.
Samsung's own privacy policy and those of the 3rd parties they use. It's been over a year and checking now some things have already changed, but if you click on the gear icon from within the keyboard you can select "about sumsung keyboard" which should give you a list of policies including gify and tenor (both used for gifs I guess) but i didn't even check those. The one you want is the legal info which tells you that in addition to samsung's privacy policy (which outright says it's collecting and selling everything it can get their hands on (see https://www.computerworld.com/article/3514999/samsung-sellin...) you also have to accept the policy of a 3rd party called Nuance which they use for "language data".
The wall of legal text there eventually links to their privacy privacy which opens in the browser. They collect and store things like "your choice of words, speech and writing patters, how you use your keyboard, custom words you add, the number of charters you type, your typing speed, etc. and they share (read sell) that data to affiliates, subsidiaries, vendors, subcontractors, etc (pretty much anyone they feel like). They specifically state they use this data to draw inferences reflecting your characteristics, behavior, abilities, preferences and aptitudes all of which they can sell to anyone at any time without even telling you about it because what they learn about you by going over all your data is their data and they don't have to tell you anything at all about what they do with their data.