Hmmm, sounds like we now need keystroke sound jammers. Shouldn't be too hard to implement if you have a good random noise generator, but it could get annoying if you play white/pink noise while a password prompt pops up. Of course, there's still the issue of the pinhole camera in the ceiling tiles aimed at your keyboard, but that's old hat. :) I wonder if different users hit the keys in a different enough way to make any difference... http://searchsecurity.techtarget.com/originalContent/0,289142,sid14_gci96334... 'Whispering keyboards' could be next attack trend By Niall McKay, Contributing Writer 11 May 2004 | SearchSecurity.com OAKLAND -- Listen to this: Eavesdroppers can decipher what is typed by simply listening to the sound of a keystroke, according to a scientist at this week's IEEE Symposium of Security and Privacy in Oakland, Calif. Each key on computer keyboards, telephones and even ATM machines makes a unique sound as each key is depressed and released, according to a paper entitled "Keyboard Acoustic Emanations" presented Monday by IBM research scientist Dmitri Asonov. All that is needed is about $200 worth of microphones and sound processing and PC neural networking software. Today's keyboard, telephone keypads, ATM machines and even door locks have a rubber membrane underneath the keys. "This membrane acts like a drum, and each key hits the drum in a different location and produces a unique frequency or sound that the neural networking software can decipher," said Asonov. <SNIP>