Don't know if this is whst the OP has in mind, but the first thing that comes to my mind is the backdoor that many states want to impose on all encrypted commun

Don't know if this is whst the OP has in mind, but the first thing that comes to my mind is the backdoor that many states want to impose on all encrypted communications. That would create a single point of attack, so even assuming competence, it makes the system significantly weaker. And this episode if confirmed makes competence a strong assumption.