"Researchers at the University of California, Berkeley have discovered that a simple audio recording of keyboard clicks can betray what users have typed, possibly leading users to betray intimate details about their lives to virus writers and fraudsters," reports ENN.
"In an experiment carried out at the university, computer scientists were able to take several 10-minute sound recordings of users typing, feed the audio into a computer and use an algorithm to recover up to 96% of the characters entered on a keyboard."
What was particularly striking about this study, the researchers said, was the ease with which the text could be recovered using off-the-shelf equipment. "We didn't need high-quality audio to accomplish this," said Feng Zhou, co-author of the study. "We just used a $10 microphone that can be easily purchased in almost any computer supply store."
