A large distributed denial-of-service (DDoS) attack has disrupted Norway’s shared government digital infrastructure since Monday, affecting services used by the public sector.

The attack started at 03.38 CEST on Monday and has targeted the infrastructure supporting services operated by the Norwegian Digitalization Agency, Digitaliseringsdirektoratet (Digdir), and its operations provider, Vivicta.

Digdir operates Norway’s shared digital government infrastructure, including public-service logins, electronic IDs and signatures, secure digital mail, government forms, public-record access, and data exchange between agencies.

In an announcement published earlier today, the organization states that several services were completely unavailable for short periods.

The agency says many affected systems have now been stabilized, although some services, like ID-porten and eSignering, remain partially inaccessible.