Arrowhead Regional Computing Consortium (ARCC)

Arrowhead Regional Computing Consortium (ARCC)

Data Breach on April 11, 2023
Data Breach Report
Victimarcc.org
Claimed ByLockBit
Date DiscoveredApr 11, 2023
DescriptionArrowhead Regional Computing Consortium (ARCC) serve as a cooperative service agency to help school districts meet their data management needs in a cost-effective manner.
Leak SizeUnknown

Credential Exposure for arcc.org

We've indexed 10 @arcc.org accounts from external breaches, plus 2 credentials for arcc.org itself.

Last checked Sep 27, 2026

@arcc.org addresses from external breaches
Third-party breaches10 accounts · across 20 breaches · 9 with a plaintext password · most recent Nov 10, 2020
Combo lists5 accounts · most recent Aug 23, 2026
Passwords for arcc.org accounts
Combo lists2 logins · most recent Aug 1, 2026
Infostealer logs1 logins · 1 infected devices · most recent Dec 22, 2024

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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