Nordic Energy Grid on High Alert Following Threat Linked to Foreign Power
Authorities across the Nordic region have raised preparedness levels following reports of a serious threat to the region’s energy infrastructure. The threat, reportedly issued by an actor with links to a foreign power, has prompted increased vigilance and security measures in Sweden, Norway, Denmark, and Finland.
Reported Threat Details
According to Swedish broadcaster TV4, the actor may strike in the near future, though the specific method or target of a potential attack remains unclear. The threat is described as “sharp” and includes a stated deadline. Swedish police are aware of the information and are actively monitoring the situation in cooperation with relevant actors, according to a statement to TV4.
Increased Vigilance and Security Measures
The Swedish Defence Radio Agency (FRA) confirmed it urged the energy sector to increase vigilance last week through the National Cybersecurity Center. This action followed cyberattacks targeting the energy sector in Poland at the end of December 2025. Ola Billger, head of communications at FRA, stated the increased vigilance is a precautionary measure, noting there is currently no specific threat directed at Sweden. Swedish TV4 first reported the alert.
Swedish police have been ordered to guard energy-related facilities. Energy companies have been asked to review reports from the incidents in Poland, strengthen system monitoring, and ensure rapid system restoration capabilities.
Regional Response
Norwegian authorities, including Kraftcert (the cyber response environment for the power sector), are assessing the information from TV4. While no concrete threat to Norwegian infrastructure has been identified, Kraftcert has sent out sensors to investigate. Caliber.az reports that Gassco, the state-owned operator for the Norwegian gas transport system, confirmed there is no current concrete threat to Norwegian gas infrastructure, but maintains an increased security level implemented after Russia’s invasion of Ukraine in 2022.
The Ministry of Justice and Emergency Preparedness in Norway has been in contact with relevant actors in Norway and Swedish authorities, and currently assesses that there is no specific threat. Svenska Kraftnät, the Swedish national grid operator, also stated it is unaware of any specific threat or incident, but encourages stakeholders to be more vigilant. EUToday provides further details on the Swedish response.
Poland Cyberattacks as Background
The heightened alert follows a series of coordinated cyberattacks against the Polish energy sector on December 29, 2025. These attacks, impacting at least 30 wind and solar power plants and a CHP plant serving close to half a million customers, were reportedly intended to cause direct destruction of systems and data, rather than espionage or ransom. A News details the Polish incident.
Ongoing Monitoring
The National Security Authority (NSM) in Norway emphasizes the need for continued vigilance against critical infrastructure, noting activity targeting the energy sector in the past year, including sabotage against a dam in Bremanger in April of the previous year. The NSM urges Norwegian businesses in the energy sector to strengthen their security measures.