Otto Sieve

Otto Sieve

Data Breach on August 25, 2026
Data Breach Report
Victimotto-sieve.de
Claimed ByStorm
Date DiscoveredAug 25, 2026
DescriptionOtto Sieve GmbH is a family-owned building services company based in Germany, specializing in heating, ventilation, plumbing, and solar technology solutions.
Leak SizeUnknown

Credential Exposure for otto-sieve.de

We've indexed 1 credentials for otto-sieve.de itself.

Last checked Sep 6, 2026

Passwords for otto-sieve.de accounts
Combo lists1 logins · most recent Aug 7, 2026
Infostealer logs1 logins · 1 infected devices · most recent Sep 4, 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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