Trump's toadies are apparently not versed in the code of mob communication

[Dread Pirate Roberts]

Never write anything down that you can say over the phone, never say anything over the phone that you can tell someone in person, never tell someone in person anything that can be communicated with a wink and a nod. They should probably read this book. Then again, it's probably too late now

...as villains balance the lure of criminal reward against the fear of dire punishment, they are inspired to unexpected feats of subtlety and ingenuity in communication. He uncovers the logic of the often bizarre ways in which inveterate and occasional criminals solve their dilemmas, such as why the tattoos and scars etched on a criminal’s body function as lines on a professional résumé, why inmates resort to violence to establish their position in the prison pecking order, and why mobsters are partial to nicknames and imitate the behavior they see in mafia movies. Even deliberate self-harm and the disclosure of their crimes are strategically employed by criminals to convey important messages.