Companies

Mutual One Bank: data breach filings, state by state

Mutual One Bank has 1 data breach filing on record in 1 government portal. The latest was reported to Massachusetts OCABR on May 20, 2026, with 1 Massachusetts residents. Data exposed, as filed: Financial / bank account.

1residents counted in 1 state (MA). Latest filing per state, last twelve months
1filing in 1 government portal
May 20, 2026latest filing, Massachusetts OCABR

By portal

PortalFilingsLatest reportPeople in the latest filing
Massachusetts OCABR1May 20, 20261 Massachusetts residents

Counts are the organization's own, as filed with each agency. Most state portals count their own residents only, so no single state shows the whole incident. An organization can file more than once for the same incident, and for different ones.

Case file

Breach window
Not stated in the filings
Discovered
No letter on file to read
Offered to those affected
No letter on file to read
Third party named
No letter on file to read

Open the case fileWord document

Every filing with the agency links, each state's record against its statutory period with the citation, what the letter offers, prior incidents. Letter facts are quoted so you can check them.

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Every filing

OrganizationSourceStateReportedResidents affectedData exposed
Mutual One Bank Massachusetts OCABR MA May 20, 2026 1 Financial / bank account

Filings by other organizations that name Mutual One Bank

When a vendor is breached, its clients often file under their own names and mention the vendor.

OrganizationSourceStateReportedResidents affectedData exposed
Mutual One Bank July 2026 Massachusetts OCABR MA Aug 11, 2026 13 Financial / bank account
Mutual One Bank July 2026 Massachusetts OCABR MA Jul 30, 2026 4 Financial / bank account
Mutual One Bank June 2025 Massachusetts OCABR MA Jun 25, 2026 1 Financial / bank account
Mutual One Bank April 2026 Massachusetts OCABR MA Apr 30, 2026 13 Financial / bank account
Mutual One Bank February 2026 Massachusetts OCABR MA Feb 27, 2026 12 Financial / bank account

Data reproduced from public government filings. Each row opens the record with the agency link. Spot an error? Email support@breachtally.com with the page link. Corrections are applied and noted.