DisclosureLens
HackingFinancial ServicesFinanceCustomer Data InvolvedFinancial accountFinancial credentialsPCILowContained

MutualOne Bank

bd_139451c2d4c5cae3 · schema v1 · pii pii-v2

Severity

Low

Discovered

—

Filed

Sep 1, 2026

To disclose

—

Affected

4state residents only

Confidence

67%
Full breach record for MutualOne Bank →438 incidents on file

MutualOne Bank notified a customer of fraudulent debit card transactions. The bank credited the account and issued a replacement debit card. The notice advises the customer to monitor statements, contact credit bureaus for fraud alerts or security freezes, and report identity theft. No specific breach dates, affected counts, or technical attack vectors are disclosed in this individual notification.

Incident timeline — partial

? — ?

Breach window unknown

Sep 1, 2026

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed4 affectedView incident

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.