US EditionDenmark Blames Russia for Destructive Cyberattack on Water Utility
Denmark blames Russia-linked hacker groups for damaging water infrastructure and disrupting election websites, citing 147 similar incidents across Europe, officials said.
- On December 18, 2025, Denmark's government announced at a Copenhagen press conference led by Troels Lund Poulsen, Danish Defense Minister, that two hacker groups linked to Russia carried out cyberattacks.
- Ahead of voting last month, websites of political parties, municipalities, public institutions and a defense company were made inaccessible in an attack claimed by NoName057, hacker group.
- Agency head Thomas Ahrenkiel told reporters that `We are very confident that these are pro-Russian groups linked to the Russian state` and `We are not in a state of war, we are not in a state of peace, but we are in hybrid warfare.`
- Troels Lund Poulsen announced steps including summoning the Russian ambassador and said the government plans to set up a cyber-surveillance network and online operations center.
- Physical damage from the water-utility breach illustrates national-security stakes as a 2024 Z-Pentest attack exploded pipes at a Danish water treatment plant, with Torsten Schack Pedersen calling it "very serious" and "particularly grave.
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By Emma Burrows - Russia carried out cyberattacks against infrastructure and websites in Denmark in 2024 and 2025, Danish authorities said in a new assessment published this week, outlining previously unreported cases. Denmark's Defence Intelligence Service said in a statement Thursday that Moscow was responsible for "destructive and disruptive" cyberattacks on a Danish water utility in 2024 and a series of denial-of-service attacks that overwhe…
Denmark blames Russia for cyberattacks ahead of elections
Danish authorities say in a new assessment published this week that Russia carried out cyberattacks against infrastructure and websites in Denmark in 2024 and 2025, describing new cases which had not previously been reported.
Europe's governments no longer only defend hacker attacks. They also attack. Retaliation against the nuclear power Russia seemed unthinkable for a long time, now it takes place, albeit in secret. A country is at the center of the cyber war.
The Danish Foreign Ministry summons the Russian ambassador for a meeting.
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