UPPCO

UPPCO

Data breach claim reported July 12, 2022
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Data Breach Report
Victimuppco.com
Claimed ByLorenz
Date DiscoveredJul 12, 2022
DescriptionThe Upper Peninsula Power Company is an electrical power utility provider headquartered in Marquette, Michigan with service centers in Escanaba, Houghton, Iron River, Ishpeming, Munising and Ontonagon.
Leak SizeN/A

Breach claims on this page are published by threat actors and haven't been verified by Breachsense.

Credential Exposure for uppco.com

We've indexed 31 @uppco.com accounts from external breaches, plus 41 credentials for uppco.com itself.

Last checked Nov 8, 2026

@uppco.com addresses from external breaches
Third-party breaches31 accounts · across 24 breaches · 29 with a plaintext password · most recent Dec 18, 2025
Combo lists8 accounts · most recent Aug 23, 2026
Passwords for uppco.com accounts
Combo lists39 logins · most recent Nov 8, 2026
Infostealer logs12 logins · 4 infected devices · most recent Oct 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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