St. Mary’s Credit Union Data Breach Lawsuit

St. Mary’s Credit Union has recently informed its members of a security incident involving Mastercard, which may have compromised the safety of their ATM/Debit card ending in XXXX. The incident potentially allowed unauthorized access to member accounts, leading to the exposure of sensitive financial information. As a result, the credit union is taking immediate steps to mitigate any risks and protect affected individuals.

St. Mary’s Credit Union’s Data Breach Investigation

St. Mary’s Credit Union was notified by Mastercard about a security incident that may have impacted the safety of its members’ debit cards. This breach could have allowed unauthorized access to members’ funds, putting affected individuals at risk of financial loss. Upon learning of the issue, St. Mary’s Credit Union launched an investigation into the situation and began taking precautionary steps to safeguard its members’ accounts.

The credit union utilizes fraud-monitoring software that tracks unusual spending activity and card trends, which helped identify the issue. In response to the breach, St. Mary’s Credit Union has implemented additional protective measures, including lowering daily transaction limits on the affected debit card. They are also issuing new cards to impacted members and deactivating the compromised ones to prevent further unauthorized access.

While the credit union’s efforts to minimize the potential damage are commendable, the incident has raised concerns about the security of members’ financial data, particularly regarding the breach of sensitive account details tied to their debit cards.

When Did This Breach Occur?

The breach was reported to St. Mary’s Credit Union by Mastercard, but the exact date of unauthorized access is not specified. The credit union has confirmed that they will deactivate the compromised card by November 24, 2025, and will continue to monitor affected accounts for further suspicious activity.

What Information Was Breached?

The security incident potentially exposed sensitive financial information associated with the following:

• ATM/Debit Card
• Possibly unauthorized access to funds

While the breach may not have directly resulted in financial loss for affected members, it has raised concerns about potential unauthorized transactions or future risks related to compromised card details.

What You Can Do

If you believe your St. Mary’s Credit Union debit card was involved in this incident, take the following steps immediately:

1. Monitor your account activity: Regularly check your bank and credit card statements for unauthorized transactions. Report any suspicious activity to St. Mary’s Credit Union immediately.
2. Protect your financial information: Be cautious of phishing attempts or fraudulent messages asking for personal details. Never provide sensitive information unless you are certain of the recipient’s authenticity.
3. Request a police report: If you notice any unauthorized activity or believe your identity has been compromised, you are entitled to obtain a police report under Massachusetts law. This can serve as documentation if you need to file fraud claims or dispute charges.
4. Contact credit-reporting agencies: You may also want to contact the fraud departments of the three major credit-reporting agencies. Request a copy of your credit report to check for any suspicious activity or accounts opened in your name.
5. Review your credit report: You are entitled to a free credit report each year from each of the three major credit-reporting agencies. Use this to ensure that no unauthorized accounts have been opened in your name.

File a Data Breach Lawsuit Against St. Mary’s Credit Union