Elisa, a Finnish telecommunications company, has installed detection equipment on its undersea cables to monitor the critical infrastructure. According to the company’s announcement, the system is based on Distributed Acoustic Sensing (DAS), which turns the undersea cable into a long sensor that registers vibrations coming from the sea floor. The system has since been successfully tested, and it’s now being developed to automatically inform the Finnish Border Guard and the Finnish Navy, as well as the owner of the cable, of any irregularities.
"The protection of undersea infrastructure is a nationally important task. The recent cable breaks in mind, we have built a solution that provides an early warning of an approaching threat. We are very pleased with the tests that have now been carried out and the good cooperation with the Finnish Border Guard and the Finnish Navy,” Elisa New Business Director Jouni Petrow said. “Our quick response to the incident at the turn of the year prevented damage to other cables. Our goal is to use the early warning system to alert the authorities even before the first damage occurs."
