The 1ST MIDAMERICA CREDIT UNION Data Breach: Reported Filing Facts
1st MidAmerica Credit Union is a financial institution that provides banking, lending, and investment services to its members. As part of their operations, they collect and store highly sensitive personal information, including government identification numbers, financial account details, and private contact data required to manage member assets and credit profiles. In 2025, the credit union officially reported a data security incident to the Illinois Attorney General, confirming that unauthorized parties may have accessed sensitive member information. If you have received a formal data breach notification letter from 1st MidAmerica Credit Union, it indicates that your personal data was potentially compromised during this event. It is essential to review the letter carefully to understand the specific scope of the exposure and the protective measures being offered.
- State
- Illinois
- Reported
- August 14, 2025
What to do if you were affected
These general steps can help limit the risk of identity theft and fraud after any data breach.
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.
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