HackingFinancial ServicesFinanceVulnerability ExploitZero-DaySupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

DOW CREDIT UNION

bd_bef092a307c41513 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 8, 2023

Filed

Aug 23, 2023

To disclose

15 days

Affected

5state residents only

Linked

3 filings

Confidence

66%

Full breach record for DOW CREDIT UNION →

Dow Credit Union notified affected individuals of a data breach involving a third-party MOVEit file transfer service provider. Unauthorized parties exploited a previously unknown vulnerability (zero-day) in MOVEit starting in late May 2023. Dow Credit Union learned of the incident on August 8, 2023. The breach exposed names, addresses, SSNs, account numbers, balances, and dates of birth. Dow Credit Union is offering one year of Experian IdentityWorks credit monitoring and is reviewing its relationship with the provider.

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Incident timeline

undetected · 69 days

discovery → filing · 15 days

May 31, 2023

Begins

Aug 8, 2023

Discovered

Aug 23, 2023

Filed

vs. sector median

6 wks faster

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_5add7e1d3dd539412023-08-23Verified
Maine State AGbd_e170f9c8ca9c5bb02023-08-23Verified

Name: DOW CREDIT UNION
norm: dow credit union

Name: DOW CREDIT UNION
norm: dow credit union
Industry: Financial Servicesllm

Discovered: Aug 8, 2023
Breach occurred: May 31, 2023
Undetected for: 69 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 5state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Third party: via MOVEit Service Provider
Initial access: exploit_public_facing

During the incident: Offering you a complimentary one-year membership of Experian IdentityWorks Credit 3B
Reviewing our relationship with the involved service provider and evaluating ways to reduce the risk of a similar incident occurring in the future
Changes made: Reviewing our relationship with the involved service provider and evaluating ways to reduce the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 days(15 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGAug 23 · first

Maine State AGAug 23 · first

Montana State AGAug 23 · 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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-590.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 23, 2023
Raw hash: 7c3e438498c2df11c879d2fceafabc4e37e6ed7462c816437b18f630021a9b2e

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityDOW CREDIT UNION

Victim entityDOW CREDIT UNION

Incidentdiscovered Aug 8, 2023

Stated responseOffering you a complimentary one-year membership of Experian IdentityWorks Credit 3B

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov