Copper Mountain

Copper Mountain

Data Breach on January 26, 2023
Data Breach Report
Victimcumtn.com
Threat ActorALPHV
Date DiscoveredJan 26, 2023
DescriptionCopper Mountain Mining Corporation is a TSX/ASX listed copper producer, developer and explorer.
Leak Size450GB

Credential Exposure for cumtn.com

We've indexed 14 @cumtn.com accounts from external breaches.

Last checked Aug 16, 2026

@cumtn.com addresses from external breaches
Third-party breaches14 accounts · across 18 breaches · 11 with a plaintext password · most recent Feb 15, 2024
Combo lists3 accounts · most recent Apr 2, 2026

None of this is necessarily connected to the ransomware attack above.

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