The fibre optic cable connecting Finland and Sweden is owned by a Swedish digital infrastructure company, GlobalConnect, was damaged at two points in between Espoo and Vihti. Police said there is no reason to suspect criminal activity in the cable damage incidents. The National Cyber Security Centre of the Finnish Transport and Communications Agency. Even small forms of damage—from a bent cable to a rodent bite—can disrupt signals, cause costly outages, and require expensive repairs. This guide explores the most common causes of fiber-optic cable damage, explains the technical impact of each risk, and provides actionable strategies to protect. Finland's police confirmed on Tuesday that the damage to two fiber-optic cables running across the country's land border with Sweden was caused by excavation work rather than sabotage. An undersea fibre optic cable between Germany and Finland has stopped working and might have been deliberately cut by an unknown party, according to authorities. The 729 mile (1,173km) C-Lion1 cable under the Baltic Sea from Helsinki to Rostock went offline just after 2am GMT on Monday.
