However, attackers don't even have to be nearby to steal your info.
Attackers could theoretically leverage Skype to steal a user's passwords by collecting and analyzing the sound of their keystrokes.
The method of attack developed by researchers at the Sapienza University of Rome, University of Padua, and UC Irvine isn't like most sound-based keylogging efforts, which generally require that the attacker makes use of other connected devices, maintains close proximity to the target computer, or first infects it with malware.
Instead this attack relies on an actor remotely eavesdropping on the acoustic emanations of a user's keystrokes and analyzing them in order to reconstruct the target's input.
Sounds complicated, but as the researchers note in their paper - entitled "Don't Skype & Type (S&T)! Acoustic Eavesdropping in Voice-Over-IP" - it's easy enough to do during a Voice over Internet Protocol (VoIP) call like Skype.