Stemcor

Stemcor

Data Breach on February 02, 2024
Data Breach Report
Victimstemcor.com
Claimed ByLockBit
Date DiscoveredFeb 02, 2024
DescriptionStemcor is a leading independently run service provider for the steel industry.
Leak SizeUnknown

Credential Exposure for stemcor.com

We've indexed 370 @stemcor.com accounts from external breaches, plus 1 credentials for stemcor.com itself.

Last checked Sep 13, 2026

@stemcor.com addresses from external breaches
Third-party breaches370 accounts · across 114 breaches · 337 with a plaintext password · most recent Aug 3, 2025
Combo lists159 accounts · most recent Aug 23, 2026
Passwords for stemcor.com accounts
Combo lists1 logins · most recent Jun 22, 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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