Researchers demonstrate acoustic eavesdropping attack on fiber-optic cables using commercial DAS systems to remotely capture conversations, human activities in homes with FTTH installations

Hiding an Ear in Plain Sight: On the Practicality and Implications of Acoustic Eavesdropping with Telecom Fiber Optic Cables - NDSS Symposium

Youqian Zhang (The Hong Kong Polytechnic University), Zheng Fang (The Hong Kong Polytechnic University), Huan Wu (The Hong Kong Polytechnic University & Technological and Higher Education Institute of Hong Kong), Sze Yiu Chau (The Chinese University of Hong Kong), Chao Lu (The Hong Kong Polytechnic University), Xiapu Luo (The Hong Kong Polytechnic University) Optical fibers are widely regarded as reliable communication channels due to their resistance to external interference and low signal loss...