Using spellcheck? Electromagnetic fields could reveal your writing

It has long been known that subtle electronic fields and noises emitted by computers can reveal clues about your activity, a powerful spying method that can be done from a few feet away. These so-called side-channel signals can be collected by antennas or microphones and through analysis could reveal sensitive data such as encryption keys. It s not known if spy agencies are already using these methods, but the many academic studies outlining potential attacks would suggest it s probably a growing part of signals intelligence. Researchers from the Georgia Institute of Technology have embarked on a three-year project to figure out how these electronic signal leaks could be prevented by redesigning hardware and software. To read this article in full or to leave a comment, please click here