Skype Video Calls Can Give Away What You're Typing Inside Other Apps

Researchers from the University of Padua, Italy, and University of California, Irvine, have successfully guessed what users are typing based on the sounds given by keystrokes captured during a Skype conversation.

The idea behind this attack, called Skype & Type (S&T), is that people who engage in Skype voice or video calls, often continue to work inside other applications while they're on the Skype call.

Because most keyboards are quite loud, the sounds propagate through the computer's microphone to the other caller, who can easily record it and extract it from the background noise.