Without substance? Using chats without double checking who are members of the chat group is a thing not even I do when sharing some gossip, lol. That's blatant

Without substance? Using chats without double checking who are members of the chat group is a thing not even I do when sharing some gossip, lol. That's blatant incompetence, a person responsible for the USA defence cannot be bothered to cross the members list of a group chat before sharing extremely sensitive information. And now he's adding his family into the mix?