In the digital world, eavesdropping is a form of cyberattack where voice over internet protocol (VoIP) phone calls are intercepted and recorded, usually to glean personal or business information. Since it does not affect call quality, it’s hard to tell if you’ve been a victim of eavesdropping.
Eavesdropping is the intentional act of secretly listening in on a conversation, usually not for the best of intentions. Although today the act also includes VoIP telephone systems, it’s not a recent trend. As exemplified by the SIPtap attacks of 2007 and the Peskyspy trojans of 2009, cybercriminals have had their eye on VoIP ever since it was introduced to the market.