DisclosureLens
HackingFinancial ServicesFinanceCustomer Data InvolvedFinancial accountIdentity (basic)LowContained

MutualOne Bank

bd_6246f60b6016e389 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Apr 1, 2026

To disclose

—

Affected

Not disclosed

Linked

2 filings

Confidence

67%
Full breach record for MutualOne Bank →69 incidents on file

MutualOne Bank notified a Massachusetts resident of a fraudulent debit card transaction. The bank credited the account and issued a replacement card. The notice advises the customer to monitor statements, consider fraud alerts or security freezes, and contact credit bureaus. No specific dates, counts, or technical details of the breach mechanism were provided.

Incident timeline — partial

? — ?

Breach window unknown

Apr 1, 2026

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings

View merged incident ↗
Massachusetts State AGFeb 2 · first
Massachusetts State AG+58d · this page

Pattern: first filing Feb 2 (MA), last Apr 1 (MA) — a 58-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.