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Failed Russian Cyberattack Targets Poland's Energy Grid

1/25/2026

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Summary

Story summary

A cyberattack on Poland's energy grid occurred December 29–30, attributed to Russian hackers known as Sandworm, aiming to disrupt renewable energy communications.
The attack ultimately failed, and Polish Energy Minister Milosz Motyka called it the strongest attack on the energy sector in years.
Cybersecurity firm ESET identified the malware as DynoWiper, designed to erase data, and linked it to Sandworm.
Tusk said defenses mitigated the threat.

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Story summary

A cyberattack on Poland's energy grid occurred December 29–30, attributed to Russian hackers known as Sandworm, aiming to disrupt renewable energy communications.
The attack ultimately failed, and Polish Energy Minister Milosz Motyka called it the strongest attack on the energy sector in years.
Cybersecurity firm ESET identified the malware as DynoWiper, designed to erase data, and linked it to Sandworm.
Tusk said defenses mitigated the threat.