Contreras Hermanos

Contreras Hermanos

Data Breach on September 09, 2026
Data Breach Report
Victimcontreras.com.ar
Claimed ByLockBit
Date DiscoveredSep 09, 2026
DescriptionContreras Hermanos S.A. is an Argentine engineering and construction company based in Argentina, specializing in large-scale infrastructure projects.
Leak SizeUnknown

Credential Exposure for contreras.com.ar

We've indexed 217 @contreras.com.ar accounts from external breaches, plus 16 credentials for contreras.com.ar itself.

Last checked Sep 9, 2026

@contreras.com.ar addresses from external breaches
Third-party breaches160 accounts · across 62 breaches · 138 with a plaintext password · most recent Dec 18, 2025
Combo lists143 accounts · most recent Sep 8, 2026
Passwords for contreras.com.ar accounts
Combo lists14 logins · most recent Sep 8, 2026
Infostealer logs4 logins · 2 infected devices · most recent Aug 3, 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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