The C3 Group

The C3 Group

Data Breach on July 17, 2025
Data Breach Report
Victimc3group.com
Threat ActorNitrogen
Date DiscoveredJul 17, 2025
DescriptionThe C3 Group is a large, well-established engineering company offering a wide range of services, from restoration and industrial injection to water treatment and geotechnical projects.
Leak SizeUnknown

Credential Exposure for c3group.com

We've indexed 34 @c3group.com accounts from external breaches.

Last checked Aug 16, 2026

@c3group.com addresses from external breaches
Third-party breaches34 accounts · across 43 breaches · 31 with a plaintext password · most recent Sep 10, 2024
Combo lists14 accounts · most recent Apr 23, 2026

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

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