Steel Dynamics, Inc.

Steel Dynamics, Inc.

Data Breach on December 26, 2025
Data Breach Report
Victimsteeldynamics.com
Threat ActorAkira
Date DiscoveredDec 26, 2025
DescriptionSteel Dynamics, Inc. is a leading industrial metals solutions and steel manufacturing company based in the USA (Indiana), producing a diversified range of steel products.
Leak SizeUnknown

Credential Exposure for steeldynamics.com

We've indexed 10,441 @steeldynamics.com accounts from external breaches, plus 82 credentials for steeldynamics.com itself.

Last checked Aug 16, 2026

@steeldynamics.com addresses from external breaches
Combo lists10,209 accounts · most recent Aug 15, 2026
Third-party breaches304 accounts · across 72 breaches · 254 with a plaintext password · most recent Feb 10, 2025
Passwords for steeldynamics.com accounts
Combo lists56 logins · most recent Aug 4, 2026
Infostealer logs32 logins · 27 infected devices · most recent Aug 2, 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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