Presumably because the attacker(s) assumption was that Bezos would open a message coming directly from someone he trusted and had direct communication with, in

Presumably because the attacker(s) assumption was that Bezos would open a message coming directly from someone he trusted and had direct communication with, in this case being MBS? That brings a lot more questions though; who actually sent the message? Was it a man-in-the-middle situation? Was MBS's WhatsApp account compromised? Did someone else use MBS physical phone to do this? Was it a third party? Interesting and strange story all around.