So my friend has a fortnite acc gescammt he can be displayed
Nah, that's perfectly legal. It does not violate copyright, personal rights and criminal law. Why should one also be able to be shown if someone "steals" something? Was always okay.
Serious
Somehow I do not think so
I think it's nothing but a moral offense.
Are you serious? Of course that's illegal. You commit several crimes. Your account is yours. If you like Something bought in Fortnite, then legally belongs to this article. If a third person comes now and "takes away" the purchased item, you commit "theft". In addition, one violates the privacy rights, because you can look in private data such as chats, friend lists, etc. If you play Fortnite, you are probably under the age of majority and you will be punished according to the youth right. With single act, thus only "a stolen account" there's probably a fine and social hours.