Could a plugin be made for a private group chat that uniquely mangled all messages, so that each participant got slightly different text, but that didn't interf

Could a plugin be made for a private group chat that uniquely mangled all messages, so that each participant got slightly different text, but that didn't interfere with intelligibility, so that automatic logging when it was leaked, could be traced back to the compromised participant.. it would have to be something not easily guessed and corrected, like one participants e's are replaced with 3s. It would have to be substantive, like a paraphrasing of certain parts of the message with gpt3 or something..