The obvious question is...
Just why would anyone have a defensive anti-missile system connected to the freakin' tubes so it's vulnerable to attack by hackers in the first place?
Note: Had a really hard time choosing an appropriate icon since so many negative ones apply perfectly for such a dimwitted clueless implementation by S. Korea's Muppet-in-charge of this countless-lives-saving defensive shield. [rolling my eyes while shrugging my shoulders with palms up in the air while facepalming while scratching my head while rocking by head back and forth while saying WTF while...]