Temporary unavailability of address lookup (ssn.details)

Incident Report for Signaturgruppen Production environment

Resolved

The CPR administration have now restored private companies' access to the Civil Registration System.

Posted Oct 05, 2026 - 12:17 CEST

Investigating

We would like to inform you that our address lookup function (ssn.details) is currently temporarily unavailable.
The function is used to retrieve a user’s name and address from the Danish Civil Registration System (CPR) based on their CPR number, for example in connection with MitID login.

The CPR administration has temporarily suspended access for private companies following a security incident that is currently being investigated. This means that we are currently unable to retrieve the CPR data required for the address lookup function.

We are monitoring the situation and will update our operational status page when we know more:
https://www.signaturgruppen.dk/en/operational-status

You can follow the current CPR operational status here:
https://cprdkprod.statuspage.io/incidents/dkf94zbsnrf9

Further information about the background can be found here:

https://ufm.dk/aktuelt/pressemeddelelser/2026/oktober/omfattende-uautoriseret-adgang-til-borgeres-cpr-oplysninger/

Posted Oct 05, 2026 - 09:57 CEST

This incident affected: Signaturgruppen Broker.