CERT Poland on the December 29th incident:
"In the renewable energy sector, an attack targeted at least 30 wind and solar farms in Poland. The attack resulted in a loss of communication between the facilities and distribution system operators (DSOs), but it did not affect ongoing electricity generation. From the perspective of the transmission system operator (Polskie Sieci Elektroenergetyczne), the attack did not impact the stability of the Polish power system. It should be noted, however, that given the level of access obtained by the attacker, there was a risk of causing a disruption in electricity generation at the affected facilities. Even if such a disruption had occurred, analyses indicate that the combined loss of capacity across all 30 facilities would not have affected the stability of the Polish power system during the period in question."
I've already heard too many people exagerating the phyiscal impact of this attack.
#poland #ot #energy #grid #renewables #cyber #cybersecurity