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Unprecedented data breach in Denmark exposes 9 million citizens

Published

6 October 2026

Topic

regulatory

◆ Sectors

Cybersecurity

◆ Geography

Denmark

◆ Source

Read at escudodigital.com →

◆ Verified

Fusion42 · 6 October 2026 · Fusion42 review

Denmark's Central Person Register suffered a large-scale data breach affecting about 8.8 million people, including current and former residents, via a compromised supplier's access. Authorities are investigating and have taken urgent measures to secure the system and alert citizens against identity theft.

This Wire brief sits within Fusion42's coverage of Cybersecurity, and 5 sources have reported it between 5 Oct 2026 and 6 Oct 2026.

◆ ◆ The Wire takeaway

Your security now hinges on your suppliers' controls as much as your own. Danish trust rules just tightened overnight, so check who accesses your data and tighten their permissions immediately.

◆ Coverage

5 sources · first reported 5 Oct 2026 · latest 6 Oct 2026

◆ Related on Wire

◆ Topics

Cybersecuritydenmarkdata-breachcybersecuritypersonal-datasupply-chain-attack