Optical Speech Recovery From Desktop Speakers

Ben Nassi, Yaron Pirutin, Jacob Shams, Raz Swissa, Yuval Elovici, Boris Zadov

Computer 55 (11), 40-51, 2022

In this article, we show that desktop speakers’ internal (electrical circuitry) and external (reflective diaphragm) design may expose users to confidential information leakage. We demonstrate that these flaws are present in billions of devices produced by global manufacturers and discuss countermeasures.