MLs would also need tell the difference between disinformation and real information. This is incredibly hard to do, since disinformation looks like real information unless your understanding of the world is broad and specific. And then eventually you end up with the same problem as humans, which is that if the world context leaves out trustworthy information needed to discriminate real information from faulty information, then the ML will also fall prey to the hack. And of course, for truly nefarious misinformation, it is just consistent enough with trustworthy information to appear trustworthy.
This is no easy slice.