Polish Power Grid Hit by Russian Hackers: 30 Renewable Farms and a Major Plant Serving 500,000 Customers.

Cyberattack Targets Polish Energy Infrastructure

According to UATV: On December 29, 2025, Russian hackers launched a cyberattack against Poland's energy grid. The incident compromised 30 wind and photovoltaic farms, as well as a major combined heat and power (CHP) plant that serves approximately 500,000 customers. The attack occurred during a severe winter storm, with plunging temperatures and heavy snowfall across the region, amplifying the potential disruption.

Investigators report that the attackers gained access by exploiting default usernames and passwords, as multi-factor authentication was not in place. This vulnerability allowed the intruders to attempt installing malware designed to wipe data. Preliminary findings suggest the involvement of Russia's Federal Security Service (FSB), specifically a unit known as 'Center 16'. This group has been previously linked to cyber operations against critical infrastructure in allied nations.

Heightened Security Concerns

The breach has raised serious concerns about the security of Poland's energy infrastructure and the potential consequences for its population, especially during peak winter demand. Polish authorities are continuing their investigation to uncover all details of the incident and to bolster the security of the national grid.

Cyberattacks on energy systems are becoming increasingly common amid rising geopolitical tensions, underscoring the critical need for enhanced cybersecurity measures. As a member of the European Union, Poland is likely to seek support from international partners to strengthen its defensive capabilities. The outcome of this investigation could also influence future political and economic relations within the region.