Social EngineeringFinancial ServicesFinancePhishingCustomer Data InvolvedIdentity (basic)PHILowContained

Missouri Central Credit Union

bd_8688e3f88f0abef9 · schema v1 · pii pii-v2

Severity

Low

Discovered

—

Filed

Oct 1, 2026

To disclose

—

Affected

5state residents only

Confidence

67%

Full breach record for Missouri Central Credit Union →

Missouri Central Credit Union notified affected individuals that an unauthorized party accessed email accounts via a phishing scheme. The incident involved personal information including names and potentially medical information. The Credit Union secured the accounts, engaged a forensic firm, and is offering complimentary identity monitoring services.

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Incident timeline — partial

? — ?

Breach window unknown

Oct 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.Confirmed5 affectedView incident

Name: Missouri Central Credit Union
norm: missouri central credit union

Name: Missouri Central Credit Union
norm: missouri central credit union
Industry: Financial Servicesllm

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 5state-resident count only
Data types: Identity (basic)PHI
Attack vector: Phishing
MITRE ATT&CK: T1566 PhishingT1114 Email Collection
Threat actor: External
Initial access: phishing_link

During the incident: Took steps to secure the account
Initiated an internal investigation
Engaged a cybersecurity firm to conduct a forensic investigation
Offering a complimentary membership of Experian IdentityWorks Credit 3B
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/2026-1765-missouri-central-credit-union/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 1, 2026
Raw hash: c9731b038ca008ba3ae5efafb36830044e3938957391f567914c70d0bd66b338

Reporting entityMissouri Central Credit Union

Victim entityMissouri Central Credit Union

IncidentPhishing

Stated responseTook steps to secure the account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov