Sniffing Keystrokes via Laser and Keyboard Power

Presenters at the CanSecWest security conference detailed on Thursday how they can sniff data by analysing keystroke vibrations using a laser trained on a shiny laptop or through electrical signals coming from a PC connected to a PS/2 keyboard and plugged into a socket. Using equipment costing about $80, researchers from Inverse Path were able to point a laser on the reflective surface of a laptop between 50 feet and 100 feet away and determine what letters were typed