The same thing that lets me know you hid seventy-eight people inside them. I don't care what kind of surveillance Marcus had on you, you obviously know enough about Starfleet security protocols to circumvent them. And Marcus' ship was never meant for Starfleet, you made that ship for you. And your crew.

[Correct him if he's wrong, Khan, he dares you.]

So get a job doing something else. Muck out stables, I'm sure bullshit's right up your alley.