Eavesdropping via fiber-optic cables | Kaspersky official blog
Researchers have established that fiber-optic cables can be exploited for eavesdropping. We’re breaking down how feasible such an attack is in a real-world scenario. Researchers from three universities in Hong Kong have published a paper demonstrating a method of eavesdropping through fiber-optic cables. Fiber optics have long been the gold standard for data transmission due to their ability to transfer information at high speeds over long distances. Fiber-optic cabling utilizes ultra-thin glass threads for transmission, and is widely used not only for backbone data lines but also for connecting individual premises. And as it turns out, these very glass threads are sensitive enough to vibrations that they subtly alter the parameters of the optical signal. Potentially, this allows a fiber-optic cable to be turned into a microphone and intercept room conversations while being kilometers aw
Source: https://www.kaspersky.com/blog/fiber-optics-eavesdropping/55658/
