Whether the hackers are doing it for sexual kicks or with the intention of blackmail doesn't really matter - it's a gross invasion of privacy, and can leave the victim feeling shaken and abused.

Up until now, most people have believed that the LED indicator which sits next to the webcam of laptop and desktop computers provides some warning that the device has been activated.

And, to make matters worse, she was nude in the photos. Apparently, there's a way for hackers to spy on people via their i Sight Webcams in older Apple Mac Books.The webcam is the square at the top of the Mac Book's screen.And the black dot to the right of it is the LED indicator. Researchers Matthew Brocker and Stephen Checkoway of Johns Hopkins University discovered it was possible to disable the LED indicator light on some Mac Book laptops and i Mac desktop computers, alowing video and images to be taken without any warning being given to the computer user.Her little sister, Suzy, was doing the same thing down the hall.The house was quiet, save the keyboard tapping in the girls' rooms, when the odd little instant message popped up on Melissa's screen—an IM from Suzy.