She is an AI. A hacker removed her ethical directives.

[ She then proceeded to murder the entire population of a space station. SHODAN hated humans for their inferiority. Her only use for them was as raw material as she created new species better to her liking that would worship her as a goddess.

The thought SHODAN's monstrous experiments makes Marie's mouth go dry, a nightmarish memory of The Many. ]

It's not that sort of backdoor. It is to bypass her central authentications and stop her.

[ A deep breath! To clear her head, which really just means she's looking around for something to steady herself as her head spins. She spots a crutch across the room, and like the charming lady she is, tells him to go get it for her, ]

Fetch that for me.

[ No please, and there won' be a thank you either.......... ]