3F

3F

Data Breach on August 17, 2026
Data Breach Report
Victim3f.dk
Threat ActorQilin
Date DiscoveredAug 17, 2026
Description3F is a trade union based in Denmark, representing skilled and unskilled workers across industries including manufacturing, construction, transportation, public services, hospitality, and agriculture, while providing labor representation, collective bargaining, legal assistance, and member services.
Leak SizeUnknown

Credential Exposure for 3f.dk

We've indexed 934 @3f.dk accounts from external breaches, plus 72 credentials for 3f.dk itself.

Last checked Aug 17, 2026

@3f.dk addresses from external breaches
Third-party breaches863 accounts · across 110 breaches · 656 with a plaintext password · most recent Jun 24, 2024
Combo lists454 accounts · most recent Aug 17, 2026
Passwords for 3f.dk accounts
Combo lists65 logins · most recent Aug 17, 2026
Infostealer logs24 logins · 24 infected devices · most recent Jul 31, 2026

Logins may belong to customers or to staff, and the data doesn't say which. None of this is necessarily connected to the ransomware attack above.

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