It was rather obvious even back then (or at least when Bezos first published his piece) that it was the Saudis that hacked his phone, I'm not entirely sure the significant of this message by De Becker.

Furthermore, at least the way I see it, the more important party at fault here is AMI. I mean we can't really be surprised that a dictatorship is using their powers against powerful and influential people (especially those that have publicly opposed and blamed them of crimes). But we should be outraged when an American corporation cooperates with them, and we should do what we can to stop and punish them, both the Saudis (in whatever way we can), and more easily, the entire AMI group, it's executives and everyone involved.