>‼ That's it. There is no further interaction from the victim. Now your company's internal network, personal documents, O365 documents/mail/notes, secret chats are fully compromised. Think about it. One message, one channel, no interaction. Everyone gets exploited.

Yeah, so? He makes it sound like some novel nightmare, but that has been the case with 0-day, RCE bugs for half a century, and we have had tons of those...