In this era where there’s no powerful weapon as you may say(depends on the usage)as information itself.
As the world itself is riding on information superhighway where no information is safe at the hands of ciphers and hackers raking their heads and shear genius on your well kept secrets .Taking the fact in mind the industrial espionage is new weapon at hands of business leaders across the globe confidential information is at the brink of divulge.
To add a further link to the chain there’s a new software that can recreate the text by 'listening' to the sound of the keys.
Doug Tygar from the University of California, Berkeley, and his co-workers have been able to recreate up to 96 per cent of what was typed in a computer - by 'listening' to the sound of the keyboard, reports the online edition of Nature, the science magazine. They used a $10 microphone for this.
"Our algorithms require no information about the typist, keyboard, room or text typed," Tygar said. In fact, the microphone needn't even be placed in the same room as the typist.
"A parabolic microphone outside the room would work equally well at recovering the signals."
The method relies on the 'tap' produced when your finger strikes the keyboard. "Every key makes an ever so slightly different sound," Tygar said.
"Keys at the edges sound different to those in the centre, just as a drum produces different tones when struck in the middle or near the rim," he said.
This sound isn't usually distinct enough to identify a specific key, but that's where the computer software comes in.
Using the sequence of sounds, it guesses as to what the words might be, and then gradually refines them, using standard algorithms for checking spelling and grammar.
The software also learns to recognise individual keys, becoming more accurate as it goes along.
"Once our algorithm has 10 minutes' worth of typed English, it can recover arbitrary text, such as passwords," said Tygar.
With such softwares now freely available in market God can only save our confidential information no matter what nature it may be.