Acoustic Eavesdropping with Telecom Fiber Optic Cables (ndss-symposium.org)

The NDSS paper shows how attackers can exploit the acoustic sensitivity of telecom fiber optic cables to eavesdrop, using Distributed Acoustic Sensing and a added “sensory receptor” to better capture airborne sounds at a distance. It argues that with growing Fiber-to-the-Home deployments, such techniques could allow recovery of sensitive information like human activities, indoor location, and even conversation content.