Main Street Bank

Main Street Bank notified Massachusetts customers of a suspected data compromise involving a merchant's payment card environment. The incident occurred between December 2, 2025, and July 16, 2026, potentially exposing customer payment card numbers, names, and expiration dates. The bank stated its own systems were not compromised and that no Social Security numbers or bank account numbers were accessed. Customers were offered new debit cards and guidance on monitoring accounts and placing fraud alerts or security freezes.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2026-08-13. 1 Massachusetts residents were affected.

Main Street Bank notified Massachusetts customers of a suspected data compromise at a merchant's payment card environment. The incident, occurring between Nov 18, 2025 and July 6, 2026, exposed customer debit card numbers, names, and expiration dates. Bank systems were not compromised. Customers were offered new cards and advised to monitor accounts.

Main Street Bank notified Massachusetts customers of a suspected data compromise affecting a merchant's payment card environment. The incident, occurring between July 27, 2025, and March 31, 2026, potentially exposed debit card names, numbers, and expiration dates. Bank systems were not compromised; the breach originated from a third-party merchant. No SSNs or bank account numbers were accessed. Customers were advised to monitor statements and offered new debit cards.

Main Street Bank notified Massachusetts customers of a suspected data compromise involving a merchant's payment card environment. The incident occurred between November 1, 2025, and December 31, 2025. Customer card data (names, numbers, expiration dates) may have been compromised, but no SSNs or bank account numbers were retrieved. Bank systems were not directly compromised; the breach originated from a third-party merchant. Customers were offered new debit cards.

Main Street Bank notified Massachusetts customers of a suspected data compromise affecting a merchant's payment card environment from July 1, 2025, to May 5, 2026. The incident potentially exposed card names, numbers, and expiration dates. The bank stated its own systems were not compromised and that no SSNs or account numbers were retrieved. Customers were offered new debit cards and advised to monitor statements, place fraud alerts, and consider security freezes.

Main Street Bank notified Massachusetts customers that payment card data (names, numbers, expiration dates) was exposed after being recovered from the 'Black Stash Market' dark web marketplace on May 18, 2025. The bank stated its systems were not compromised and no SSNs or account numbers were accessed. Customers were offered new debit cards and credit monitoring advice.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-12-23. 1 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-12-19. 1 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-12-19. 1 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-10-31. 1 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-10-08. 2 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-10-03. 2 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-09-26. 2 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-09-16. 2 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-09-12. 2 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-07-31. 2 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-06-26. 2 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-06-24. 1 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-05-30. 3 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-05-19. 1 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-05-13. 1 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-05-13. 1 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-04-29. 1 Massachusetts residents were affected.

Main Street Bank reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-04-22. 1 Massachusetts residents were affected.