In December 2025, cybersecurity researchers, notably ESET, attributed with medium confidence a cyberattack on Poland's power grid to Russia's GRU-linked hacking group Sandworm. The attackers deployed DynoWiper wiper malware targeting Poland's national energy systems, aiming to disrupt communication between renewable energy devices and power distribution operators; however, the attack was unsuccessful. The use of wiper malware aligns with Sandworm's historical pattern of targeting critical infrastructure in adversary countries, including notable attacks on Ukraine. The attack coincided with the ten-year anniversary of Sandworm’s 2015 malware attack on Ukraine's energy sector. Polish officials described this as the strongest cyberattack faced by the power grid in years, leading to arrests of individuals suspected of Russian espionage. Concurrently, Poland is working with NATO to enhance Eastern border security with Belarus, including autonomous weapons and AI surveillance systems, which Russia may perceive as provocative.

In December 2025, cybersecurity researchers, notably ESET, attributed with medium confidence a cyberattack on Poland's power grid to Russia's GRU-linked hacking group Sandworm. The attackers deployed DynoWiper wiper malware targeting Poland's national energy systems, aiming to disrupt communication between renewable energy devices and power distribution operators; however, the attack was unsuccessful. The use of wiper malware aligns with Sandworm's historical pattern of targeting critical infrastructure in adversary countries, including notable attacks on Ukraine. The attack coincided with the ten-year anniversary of Sandworm’s 2015 malware attack on Ukraine's energy sector. Polish officials described this as the strongest cyberattack faced by the power grid in years, leading to arrests of individuals suspected of Russian espionage. Concurrently, Poland is working with NATO to enhance Eastern border security with Belarus, including autonomous weapons and AI surveillance systems, which Russia may perceive as provocative.