Members Choice Credit Union

Members Choice Credit Union

Data Breach on October 18, 2023
Data Breach Report
Victimmccu.com
Threat ActorALPHV
Date DiscoveredOct 18, 2023
DescriptionMembers Choice Credit Union (MCCU) is a full-service financial institution serving the Katy, Cy-Fair and West Houston community for over 80 years.
Leak SizeUnknown

Credential Exposure for mccu.com

We've indexed 47 @mccu.com accounts from external breaches, plus 64 credentials for mccu.com itself.

Last checked Aug 16, 2026

@mccu.com addresses from external breaches
Third-party breaches46 accounts · across 29 breaches · 40 with a plaintext password · most recent Dec 18, 2025
Combo lists11 accounts · most recent Dec 3, 2025
Passwords for mccu.com accounts
Combo lists61 logins · most recent Aug 15, 2026
Infostealer logs11 logins · 6 infected devices · most recent Jul 19, 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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