Kurt J. Lesker

Kurt J. Lesker

Data Breach on December 03, 2025
Data Breach Report
Victimlesker.com
Claimed ByChaos
Date DiscoveredDec 03, 2025
DescriptionThe Kurt J. Lesker Company (KJLC) is a global manufacturer company based in the USA (Pennsylvania) distributes vacuum technology solutions, serving a wide array of industries including semiconductor manufacturing, aerospace, and R&D.
Leak Size615GB

Credential Exposure for lesker.com

We've indexed 178 @lesker.com accounts from external breaches, plus 63 credentials for lesker.com itself.

Last checked Aug 31, 2026

@lesker.com addresses from external breaches
Third-party breaches175 accounts · across 73 breaches · 163 with a plaintext password · most recent Aug 18, 2024
Combo lists61 accounts · most recent Aug 23, 2026
Passwords for lesker.com accounts
Combo lists32 logins · most recent Aug 26, 2026
Infostealer logs32 logins · 25 infected devices · most recent Aug 31, 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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