Apple Music appears to be sparking serious privacy concerns for some users, with multiple complaints on Reddit about other people's playlists randomly appearing in their music libraries in the Music app. Redditor adh1003, who contacted MacRumors about the issue, has compiled several reports from users complaining about the appearance of strange playlists in the app that they do not recognize. MacRumors has since found other posts on Reddit from users reporting the same behavior . In some cases, unknown playlists have been merged with user's existing playlists. In other cases, user's playlists have gone missing/been replaced by unrecognized ones. Some users have expressed concerns that their Apple accounts have been hacked, but the more likely cause of the issue is an unspecified problem with Apple's iCloud server. Unsyncing and then re-syncing iCloud for the Music app (Settings -> Apple ID -> iCloud -> Show All) has worked for a handful of users, but