Poland Thwarts Russian Wiper Malware Attack on Power Plants

Poland blocked a Russian wiper malware attack on power and heating plants, officials say, avoiding outages during winter and prompting tighter cyber rules.

Cybersecurity firm ESET identifies a new data-wiping virus used against Polish power plants. Prime Minister Donald Tusk confirms the attack was defeated without any loss of power to the public.

Poland has narrowly avoided a massive energy crisis following what officials are calling the largest cyberattack on the country in years. Between 29 and 30 December 2025, hackers attempted to break into the nation’s energy infrastructure, specifically targeting two combined heat and power (CHP) plants and systems that manage wind and solar energy.

For your information, these plants are vital because they don’t just provide electricity; they also pump heat into local homes and businesses. Experts from the cybersecurity firm ESET have now linked the attempt to a notorious Russian hacking group known as Sandworm ...