IT system supplier cyberattack impacts 200 municipalities in Sweden

A cyberattack on Miljödata, an IT systems supplier for roughly 80% of Sweden’s municipal systems, has caused accessibility problems in more than 200 regions of the country. In addition to the service disruption, there are concerns that attackers also stole sensitive data, with local media reporting that the threat actor demanded a ransom of 1.5 Bitcoins from Miljödata in exchange for not leaking stolen information.

The attack occurred over the weekend, with Miljödata CEO Erik Hallén confirming on 25 August that more than 200 municipalities in Sweden have been impacted. Swedish authorities and regional bodies have begun investigations, and regions such as Halland and Gotland warned their citizens that sensitive personal data may have been leaked. Other municipalities reported as impacted included Skellefteå, Kalmar, Karlstad, and Mönsterås. At the time of writing, no ransomware groups had publicly claimed responsibility for the attack.