Russia-Linked Wiper Attack on Poland’s Power Grid Foiled

European security firm ESET says a December attack on Poland’s energy sector used a destructive wiper called DynoWiper with the aim of causing outages; the attack was blocked before any power was cut, though it could have affected up to about 500,000 people. Authorities attribute the operation to Russia’s Sandworm/GRU, marking a notable disruptive cyber threat against Poland’s energy infrastructure and underscoring the risk of wiper campaigns.