The FBI considers FaceApp to be a potential counterintelligence threat [pdf]
I know it's against the rules to tell people to read the article, but I would encourage everyone to read the article. It specifically says this is a potential threat to>"elected officials, candidates, political campaigns, [and] political parties"not to the general public. The potential threat is for someone at Candidate_1's campaign taking selfies with the app, that then uploads them to Russian servers where the Russian government can see them and can also see what's in the background (sensitive documents?) or see geo-location from the app (like how Strava was leaking the coordinates at military bases [1]) or any number of things a hostile foreign government who has already hacked American elections once and is planning to do it again might want to do with pictures that interns/staffers might think are private.[1] https://www.theguardian.com/world/2018/jan/28/fitness-tracki...