COVANTAGE CREDIT UNION

CoVantage Credit Union based in Antigo, Wisconsin, a financial services entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-10-27 and reported on 2025-12-02. 613 Texas residents were affected. 160,000 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Financial Information (e.g. account number, credit or debit card number);Date of Birth. Consumers were notified via U.S. Mail;Email.

Marquis Software Solutions, a vendor for CoVantage Credit Union, reported an external system breach on August 14, 2025, discovered on October 27, 2025. The incident affected 160,000 individuals nationwide, including 21 Maine residents. Personal information including names, government IDs, and financial account numbers was accessed. Marquis engaged cybersecurity experts, notified law enforcement, and offered 24 months of credit monitoring.

Marquis Software Solutions, a third-party vendor for CoVantage Credit Union, experienced a cybersecurity incident on August 14, 2025, where an unauthorized third party accessed its network. The breach affected 22 New Hampshire residents, exposing names, addresses, phone numbers, Social Security numbers, financial account information, and dates of birth. Marquis engaged cybersecurity experts and notified law enforcement. Remediation included patching firewalls, rotating passwords, enabling MFA, and deploying EDR. Affected individuals received 24 months of credit monitoring.

CoVantage Credit Union reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-11-26. 36 Massachusetts residents were affected.