Here’s an interesting hack against a computer’s monitor:
A group of researchers has found a way to hack directly into the tiny computer that controls your monitor without getting into your actual computer, and both see the pixels displayed on the monitor — effectively spying on you — and also manipulate the pixels to display different images.
I’ve written a lot about the Internet of Things, and how everything is now a computer. But while it’s true for cars and refrigerators and thermostats, it’s also true for all the parts of your computer. Your keyboard, hard drives, and monitor are all individual computers, and what you think of as your computer is actually a collection of computers working together. So just as the NSA directly attacks the computer that is the hard drive, this attack targets the computer that is your monitor.
(The post has been translated with explicit permission of Schneier on Security )
Source: Hacking Your Computer Monitor