St. Mary's Credit Union reported a debit-card security incident to the Massachusetts Attorney General on August 17, 2026, after Mastercard flagged a card compromise that possibly permitted unauthorized access to a member's funds. Dapeer Law is investigating a potential class action and offering free case reviews to notice recipients.

Dapeer Law is investigating a potential class action over the MutualOne Bank data breach reported to the Massachusetts Attorney General in July 2026, in which an unauthorized party obtained customer debit card numbers and used them for fraudulent transactions. The bank issued replacement cards but offered no credit monitoring, so notice recipients should see what was exposed and review their legal options.

Webster Five Cents Savings Bank notified nine Massachusetts customers that their debit-card numbers may have been exposed through an external merchant's payment network. Dapeer Law is investigating. See what was exposed and your legal options.