Dr. Chen Wang, Associate Professor of Computer Science at Southern Methodist University, studies privacy and security in modern communication technologies.

Video calls have become part of everyday life, and most of us assume we’re safe when the camera is turned off. But Dr. Wang’s research shows that even small sounds during a call can reveal surprising details about a person’s surroundings.

Dr. Wang explains how audio signals from platforms like Zoom and Teams can expose information about where someone is located, and why stronger privacy protections may be needed as virtual communication becomes more common.