---
title: "Data breach at Registre central de la population danois (CPR)"
description: "Denmark's Central Population Register (CPR) announced on 5 October 2026 that about 8.8 million people are affected by a data breach, roughly 80% of the 11 million entries in the register. Those affected include people living in Denmark, people who have moved abroad and deceased people. According to "
canonical: https://inyourgeek.com/en/fuites-de-donnees/2026-10-05-registre-central-de-la-population-danois
type: fuite-de-donnees
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-10-05
dateModified: 2026-10-05
---
# Registre central de la population danois (CPR)

Data breach — High

Denmark's Central Population Register (CPR) announced on 5 October 2026 that about 8.8 million people are affected by a data breach, roughly 80% of the 11 million entries in the register. Those affected include people living in Denmark, people who have moved abroad and deceased people. According to the official communications reported, attackers used a private company's legitimate access to the system in September 2026 to obtain names, addresses, CPR numbers and other information. The data protection authority states that brute-force enumeration of valid CPR numbers preceded the extraction.

A name, address and CPR number together allow a malicious third party to run highly convincing fraudulent calls or messages, since the sender appears to already know this personal information.

| Fact | Value |
| --- | --- |
| Disclosed on | October 5, 2026 |
| Accounts affected | 8.8M |
| Sector | Public sector |
| Country | Denmark |
| Cause | Credential stuffing |
| Severity | High |
| Status | Reported |

## Exposed data

- Full name
- Postal address
- Customer ID

## What you can do

- You can ask the organisation exactly what was exposed about you (right of access), and complain to the DPA if no answer comes within a month.

## Sources

- [Denmark population registry data breach affects 8.8 million people](https://www.bleepingcomputer.com/news/security/denmark-population-registry-data-breach-affects-88-million-people/) — Bleeping Computer

_Entry built from the cited sources after a corroboration check, then reviewed before publication._

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