Their coms are in game apps through the chat that is private to "groups" if you look at Hay Day you will see what I mean. I realize this sounds crazy, But I was looking at that game a few years ago with a niece who was into it and I noticed how the "neighborhoods" were organized and limited or private as to who joins. The farms also provide signals in how the crops are harvested, spelling out words. This is also documented via the IC when they were tracking terrorist comms several years ago. I realized this is how a lot of people communicate behind the walls of these children's games. Of course, I could be totally wrong.