On Thu, May 13, 2004 at 09:32:40AM -0400, Sunder wrote: > http://searchsecurity.techtarget.com/originalContent/0,289142,sid14_gci963348,00.html > > '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. [...]
> 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. I wonder if my Model M keyboards (which have individual electrical/mechanical switches under each key) are vulnerable to this attack. It is pretty noisy, I can imagine that the noise of each key's switch is sufficiently different (due to wear, etc) that it would still work with modifications. -J