Fortum reports suspicious activity around Finnish and Swedish plants

The energy giant hit by cyber attacks and drone sightings.

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Fortum, Finland’s largest power utility, is dealing with a wave of cyber threats and security incidents targeting its energy facilities, CEO Markus Rauramo revealed. The utility, which manages hydro, wind, solar, nuclear, and combined heat and power plants, faces daily denial-of-service attacks, disruptions to satellite communications, drone sightings, and suspicious individuals around its sites. Fortum has sought assistance from Finnish authorities to investigate the incidents, which have also impacted its operations in Sweden.

Finnish and Swedish intelligence services have declined to comment on the cyber attacks or identify any potential perpetrators. Fortum’s head of security, Jari Stenius, noted an uptick in the frequency of such incidents but emphasised that their impact on operations has been minimal so far. To strengthen its defences, the company has enforced strict access controls, employed private security, set up backup systems, and conducted regular drills with authorities.

The Finnish National Bureau of Investigation (KRP) confirmed that police are currently conducting several investigations into activities near critical infrastructure sites.