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Mainstreet Credit Union

Disclosed May 4, 20264 months ago4,123 affectedConfirmed

Official notice

What is known

People affected4,123 (as reported by the organization)
DisclosedMay 4, 2026
HappenedJan 12, 2026
AttackNot stated
Data exposedNot stated
SectorFinance · US
StatusConfirmed

Sources

Source
Indiana Attorney General 2026 data breach report: Mainstreet Credit Unionin.gov · Official notice

Notices filed

WhereFiledPeople
Indiana AGresidents of INMay 41
History of this record
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (Indiana AG), confirmed by Indiana AG. Record counts are as reported. Not legal advice.

Everything about Mainstreet Credit Union

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