Also, why no terrorist yet used those security failures to do terror?
Once a random dude managed to log into ISS controls... Ever wondered what happens if some terrorist crash ISS into New York?
And then the red light cameras start magically getting bullet holes in them.
you're also assuming no one has done it - I have no idea wether or not someone has used shodan for malicious purposes, but that certainly doesn't mean it hasn't happened.
More info on the book: https://www.kirkusreviews.com/book-reviews/louis-charbonneau...
ISS has some engines, crashing on earth is very simple, you can just thrust in the opposite direction that you are going (thus falling into the planet, although slowly and probably astronauts can find the attacker and put it back into orbit before anything serious happens) or you can trust in a diagonal of sorts, to slow your speed AND toward the planet (if you just accelerate toward the planet is more probably that you will only create a elongated orbit, and if you insist, you will slingshot out of orbit).