Student Logs Teachers Keystrokes
handy_vandal writes "A 16-year-old student has been charged with a misdemeanor for rigging a keystroke-recording device onto a teacher's computer. School district police received a tip from students that the boy was trying to sell answers to final exams. The District Attorney's Office has charged the teen with breach of computer information, a Class B misdemeanor punishable by a fine of up to $2,000 and up to 180 days in jail. This sort of thing has happened before. The problem is so pervasive that the GRE board has switched from computers back to paper and pencil."
There is nothing inherently secure about USB. USB keyboards use a standardized format. The main thing that keeps you from making a keylogger is the protocol complexity -- you have to understand the usb protocol to log keystrokes. I think it's definitely doable (even though it's definitely more complex than PS/2).