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high severity March 14, 2025 · 1 min read

St. Mary's Credit Union Data Breach Notice (Massachusetts Attorney General)

If you received a notice from St. Mary's Credit Union, here’s what the filing says was exposed, and what to do about it.

St. Mary's Credit Union notified Massachusetts residents of a data breach in a filing reported to the Massachusetts Office of Consumer Affairs on March 14, 2025, and the notice lists driver's license numbers and credit or debit card numbers among the information exposed.

St. Mary's Credit Union Data Breach Notice (Massachusetts Attorney General)

What to do now

Steps that match what this notice says was exposed

Every step below is free and you do it yourself, and none of it depends on St. Mary's Credit Union.

  1. Report the licence number to your state DMV. Most states will note the number as compromised, and some will issue a new one. It is the field that turns a stolen identity into a usable one in person.

One more, whatever was exposed: a breach notice is a favourite disguise for a phishing email. If a message about this arrives, do not use its links — go to the company’s site yourself, or call the number on your statement.

Report details & sourcing

Severity High includes account details that can be misused directly
Disclosed March 14, 2025
Last reviewed July 22, 2026
Affected 1
Data exposed Driver's license numbersCredit or debit card numbers
By GalaxyWarden Threat Research · Editorial & sourcing standards
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
Sources: Massachusetts Office of Consumer Affairs breach notification
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