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MemberSource Credit Union Data Breach

State
CA
Reported
May 8, 2026
Breach date
Jun 3, 2025

MemberSource Credit Union has begun sending data breach notification letters to individuals affected by a recent security incident. If you are a member and received one of these letters, it means your personal information may have been compromised.

The breach reportedly occurred on June 3, 2025, though MemberSource Credit Union officially filed notice of the incident on May 8, 2026. While the exact types of information involved have not been specified, any exposure of personal data can create serious risks for those affected.

When your personal information is accessed without authorization, you could face a heightened risk of identity theft, fraud, and other malicious activities. It's crucial for recipients of these notices to take proactive steps to protect themselves.

Experts recommend closely monitoring your financial accounts and credit reports for any suspicious activity. Consider placing a credit freeze or fraud alert with the major credit bureaus. Remain vigilant against unsolicited communications, as scammers may try to leverage exposed information.

Attorneys are currently investigating this MemberSource Credit Union data breach to determine whether a class action lawsuit may be appropriate. Such a lawsuit could seek to recover damages for individuals whose personal information was exposed.

If you received a data breach notification letter from MemberSource Credit Union, you may have legal rights. It is advisable to explore these options and understand whether you qualify to participate in a potential class action.

Got a letter from MemberSource Credit Union?

A licensed data breach attorney will review your situation for free. No fee unless you recover.

Reviewed by David S. Harris, Esq., Law Office of David S. Harris · Florida Bar No. 0112739. About the firm

Source: CA attorney general breach filing