Three serious railway accidents in Poland on Thursday. PKP hit by a hacker attack.

On Thursday, three serious railway accidents occurred in Poland: two derailments and a collision. Today, PKP Polskie Linie Kolejowe (PKP) announced that they had been the victim of a hacker attack. The attack took place in the West Pomeranian Voivodeship, where unauthorized persons transmitted a start-stop signal.

Gazeta Wyborcza journalists unofficially learned that a signal activating the emergency stop of trains, as well as the Russian national anthem and a speech by Vladimir Putin, were transmitted on railway frequencies.

How did the signals come to be issued? It is not yet known.

Source:instalki.pl