Bill Gates knew it and he still sold computers to the world. He led us all to believe that computers are a secure platform when he knew full well that there was a huge back-door into every single one of them. And no matter how many security updates you download it will never solve the issue. Pay close attention to what he says about radios half way through this 5 minute video (he briefly mentions it and then quickly changes the subject).
Ever since the 1970's it's been known that computers emit radio waves which can be decoded back into the original data. It was one of the things that inspired Bill Gates to become interested in computers. Back then there weren't really any good ways of working with computers, there were no monitors and no mice etc. But one day in the 70's someone found out they could get their AM radio to play music by flipping switches on their Altair 8800 computer. It was a revolutionary new way of using a computer.
The radio waves that come out of computers can be decoded by a process called "Van Eck Phreaking". Every image on your computer monitor can be picked up remotely by radio waves. And ordinary computer malware can be made to broadcast the contents of your hard drives on the open airwaves for anyone to receive. Click here for a link to more information about Van Eck Phreaking. And here is a website that claims to be able to broadcast music to your AM radio from your computer, it doesn't work with all computers but it's been shown to work with some.
The good news that most people talk about is that these radio waves can only travel a couple of meters at the most. Anything beyond 1 or 2 meters and the signal is too weak to decode. The bad news is that it's just a rumor, the truth is that radio waves travel farther than 2 meters unless they're blocked by something. But a radio with the right kind of antenna can pick up these computer signals from a much greater distance.
