Earlier quoted context omitted.
It can manipulate an unsuspecting human into giving them access to something that enables it to escape the sandbox
A low probability thing when looking at how many human prisoners escape by talking a guard into just getting them out. And even lower probability when looking at truly high risk situations, I think.
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.