But this has actually happened... a lot. Search "social engineering prison breaks".
With AI it only needs to happen once.
I'm reminded of the scene in idiocracy where the protagonist, going through intake at the jail, tells the guard he's supposed to be getting out today, to which the guard says "you're in the wrong line dumbass" and waves him through.
To a true superhuman intelligence, we're the idiots who are theoretically easy to manipulate.