UnknownGovernment IDMedium

Mutual One Bank

bd_6a7b23abdae2d8c0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Oct 2, 2023

To disclose

—

Affected

1state residents only

Linked

3 filings

Confidence

95%

Full breach record for Mutual One Bank →373 incidents on file

Mutual One reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2023-10-02. 1 Massachusetts residents were affected. The report records the breach type as electronic.

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Massachusetts clock✓ MA credit monitoring due

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline — partial

? — ?

Breach window unknown

Oct 2, 2023

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 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_1b28c248e0511eaa2023-10-02Candidate
Massachusetts State AGbd_7372281efdc7c9512023-10-02Verified by operator

Name: Mutual Union
norm: mutual union
Domain: mutualclubunion.com.ar

Name: Mutual One Bank
norm: mutual one bank

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Government ID
Data elements: Social Security number
Stated not affected: Financial account numberDriver's licence numberPayment card number
The filing states these were not involved. Categories absent from both lists were not addressed either way.
Attack vector: Unknown

Compliance flags: MA credit monitoring due
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings

View merged incident ↗

Massachusetts State AGOct 2 · first

Massachusetts State AGOct 2 · first · this page

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.

Source URL: https://www.mass.gov/doc/data-breach-report-2023/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 2, 2023
Raw hash: 5fb3b180f76e4b2dddf2641122e176f75473eb96b6e0c14a9da5d1c081db2eff

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMutual Union

Victim entityMutual One Bank

IncidentUnknown

ComplianceMA credit monitoring due

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov