Data Breach WatchDBW

Banking

High

investigation open

Updated about 1 month ago

MemberSource Credit Union Data Breach

▼ Key takeaways

•Reports suggest a potential breach involving MemberSource Credit Union.
•Discovered on June 3, 2025.
•Possible data exposed: Names, Social Security Numbers, Dates of Birth, Addresses, Government IDs, Financial Account Information, Medical Information.
•Affects individuals in: California.
•Confirmation level: Confirmed by regulators.

Breach confirmed

The MemberSource Credit Union breach is confirmed. If you may be affected, add your details below and we will take it from there.

Detailed summary

MemberSource Credit Union, based in Houston, Texas, experienced a data breach on June 3, 2025, which was publicly disclosed on June 17, 2025, when the "Safepay" ransomware group claimed responsibility. The company subsequently sent breach notification letters to affected members, and the California Attorney General filed a notice on May 8, 2026.

The breach compromised various personal and financial data, including names, Social Security Numbers, dates of birth, addresses, government IDs, financial account information, and medical information. Although the volume of data stolen was 50 GB, the total number of affected individuals has not been publicly disclosed.

Details surrounding data breaches can evolve as more information becomes available, and regulatory filings or company notifications may have delayed disclosures.

Data possibly involved

Names
Social Security Numbers
Can be used to open fraudulent accounts and file false tax returns
Dates of Birth
Addresses
Could be combined with other data for identity theft
Government IDs
Financial Account Information
Medical Information

Company Response Timeline

Response Grade

Took over 180 days or has not yet notified consumers

Breach Occurred

Jun 3, 2025

Company Discovered

Jun 17, 2025

Regulator Notified

May 8, 2026

Consumers Notified

May 8, 2026

14 days to discover

325 days to notify consumers

Breach Verification Status

Reports Only

Complete

Initial dark web reports of potential breach

Company Confirmed

Complete

Company has acknowledged the breach

Regulator Confirmed

Current

Confirmed by regulatory authorities

Note: Breach verification can take time. Information may evolve as more details become available from companies and regulators.

Case Status:

Investigation Open

We're actively investigating this case and seeking affected individuals.

Were you affected? Submit your information below.

Were You Affected By This Breach?

If you are a customer or have received a data breach notification, you may submit your information as part of our ongoing investigation. Submitting your information is free and does not obligate you.

Were you in the MemberSource Credit Union breach? Check your email

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Check Your Risk Level

Answer a few questions to understand how this breach might affect you

Do you use MemberSource Credit Union?

Yes

What state are you in?

What should I do?

Change your passwords

Update passwords for the affected service and any accounts using the same password

Enable two-factor authentication

Add an extra layer of security to your accounts

Monitor your accounts

Watch for suspicious activity on your financial and online accounts

Watch for phishing attempts

Be cautious of emails or messages claiming to be from the affected company

Consider a credit freeze

Prevent unauthorized access to your credit report

Scan your email for other exposures

Check whether this address shows up in other known breaches. Free, no account.

Get your info off data-broker sites

Data Shield files removal requests with every broker that accepts an authorized agent, and gives you the exact link or letter for the brokers that only accept requests from you.

See how Data Shield works