Threat from destructive cyberattacks raised to high

The Danish Defence Intelligence Service (FE) assesses that Russia will intensify its hybrid warfare against the West and NATO in the coming months. This is especially true for authorities and companies responsible for critical infrastructure functions," says Director Laila Reenberg of the Danish Safety Technology Authority. Destructive cyberattacks can take various forms, but most often manifest as so-called wiper attacks, where hackers attempt to delete or overwrite data, making it inaccessible or impossible to recover, or through manipulation of operational technology (OT), which controls and monitors processes in physical environments. Denmark has previously been affected by a destructive cyberattack when pro-Russian hackers linked to the Russian state compromised an OT system at a small waterworks in late 2024 and manipulated water pressure. The Danish Safety Technology Authority also has knowledge of several attempts at destructive cyberattacks in European NATO countries over the past year. Read the threat assessment: HIGH threat from destructive cyberattacks Read tips on protection against destructive cyberattacks: Protect yourself from destructive cyberattacks Read about OT (Operational Technology) protection: OT protection Press contact at SAMSIK: E: presse@samsik.dk or T: +45 23 23 63 00 (weekdays 09-16 – journalist calls only – no SMS)