The Mältan combined heat and power plant near Karlskoga in Sweden suffered a cyberattack last week. Affärsverken, the municipal energy company that owns the facility, detected the breach on Friday morning. The company immediately reported the incident to Swedish police.
Anna Claesson, communications manager at Affärsverken, confirmed operations continue normally. "We are working to deliver heat as we should, and we are doing so without any deviation," she said in a statement. Claesson declined to comment on whether the attackers made any demands.
Authorities have not revealed what type of cyberattack occurred or how long it lasted. Combined heat and power plants like Mältan provide both electricity and district heating to communities. These facilities represent critical infrastructure for Swedish cities during cold winter months.
Cyberattacks on energy infrastructure pose serious risks beyond temporary service disruptions. They can expose vulnerabilities in national security systems and potentially endanger public safety. The timing remains unclear, but such incidents typically involve ransomware or state-sponsored hacking attempts targeting essential services.