SEMS

SEMS

Data Breach on February 16, 2023
Data Breach Report
Victimsemsinc.net
Threat ActorLockBut
Date DiscoveredFeb 16, 2023
DescriptionSEMS, Inc. operates as an environmental management offers environmental engineering, environmental remediation and construction, industrial cleaning, fuel storage tanks and oil/water separator system, and UST/AST/OWS consulting.
Leak SizeUnknown

Credential Exposure for semsinc.net

We've indexed 25 @semsinc.net accounts from external breaches, plus 1 credentials for semsinc.net itself.

Last checked Aug 23, 2026

@semsinc.net addresses from external breaches
Third-party breaches25 accounts · across 42 breaches · 21 with a plaintext password · most recent Aug 18, 2024
Combo lists12 accounts · most recent Aug 6, 2026
Passwords for semsinc.net 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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