Webcam hacking is typically the domain of cable TV, where NSA-like cyberwizards slap a few keys to tap into any camera in the world. In reality, we figure, it isn't anything like that at all--hackers probably need physical access to the computer to easily install spy software, and what are the chances of our webcam getting hacked, anyway? In fiction and in reality, we still expect a warning sign. On Macs, it's that little green light next to the webcam that proclaims "I'm on." But what if that gets hacked, too?