Researchers say Russian military intelligence hackers may be behind December cyberattacks in Poland

Researchers have linked the massive, multi-pronged cyberattack on Poland’s power grid in late December to hackers linked to Russian military intelligence. As per a report by cybersecurity firm ESET (via news agency Reuters), the attempted operation is being described as one of the most aggressive digital assaults on the country in a decade as it tried to knock down the country’s critical energy infrastructure during the final week of the year.

As per the report, the researchers identified the group as Sandworm, an elite unit within Russia’s GRU (military intelligence) with a history of launching some of the world’s most destructive cyber operations.