Russian military and civilian "ghost ships" are moving in the Baltic and North Seas and collecting data for sabotage against wind farms, gas pipelines and communication cables. Russian intelligence activities were revealed when the Scandinavian broadcasting companies DK, NRK, SVT and Yle examined information about radio traffic and the location of Russian ships around their states. Background: On 16 March, NATO and the EU held the first meeting dedicated to establishing a new task force on the sustainability of critical infrastructure against the background of the Russian threat