HackingFinancial ServicesFinanceStolen CredentialsData ExfiltratedTargetedIdentity (basic)Government IDFinancial accountMediumContained

CONNEX CREDIT UNION

bd_beda1a58d91c700c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 3, 2025

Filed

Aug 7, 2025

To disclose

9 weeks

Affected

34state residents only

Linked

10 records

Confidence

65%

Full breach record for CONNEX CREDIT UNION →

Connex Credit Union notified Montana residents of a data security incident occurring June 2-3, 2025. Unauthorized access to files containing names, SSNs, government IDs, and account numbers was detected on June 3, 2025. The credit union engaged independent experts, notified federal law enforcement and the NCUA, and is offering credit monitoring services.

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Incident timeline

undetected · 1 days

discovery → filing · 9 weeks / 65 days

Jun 2, 2025

Begins

Jun 3, 2025

Discovered

Aug 7, 2025

Filed

vs. sector median

+1 wks slower

This filing is one of 10 records about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteqilinbd_15dec55845d48b4c2025-06-18 · +50dVerified

Regulatory filings (8) · sorted by filing gap

Indiana State AGbd_14a6428040752aca2025-08-07Verified
California State AGbd_2d7ba7fcb1ed31622025-08-07Verified
Vermont State AGbd_b671a1b2a1a142f42025-08-07Verified
Nebraska State AGbd_d7624e00a1f3469c2025-08-07Verified

Show 4 more filings ↓up to 1d gap

South Carolina State AGbd_11cb4d7ecd0a90f92025-08-08 · +1dVerified
Texas State AGbd_383732811c88e6d52025-08-08 · +1dVerified
Maine State AGbd_975123fa51efd59c2025-08-08 · +1dVerified
Massachusetts State AGbd_fd72acc36513bed62025-08-08 · +1dVerified

Name: CONNEX CREDIT UNION
norm: connex credit union
Domain: connexcu.org

Name: CONNEX CREDIT UNION
norm: connex credit union
Domain: connexcu.org
Industry: Financial Servicesllm

Discovered: Jun 3, 2025
Breach occurred: Jun 2, 2025 – Jun 3, 2025
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Aug 6, 2025
Affected individuals: 34state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified the National Credit Union AdministrationNotified federal law enforcement
Initial access: valid_credentials

During the incident: Started an investigation using independent experts to assist
Implemented measures to enhance network security
Notified the National Credit Union Administration and federal law enforcement
Changes made: Implemented measures to enhance network security and minimize the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(65 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 9 states

View merged incident ↗

Indiana State AGAug 7 · first

California State AGAug 7 · first

Vermont State AGAug 7 · first

Nebraska State AGAug 7 · first

Montana State AGAug 7 · first · this page

South Carolina State AG+1d

Texas State AG+1d

Maine State AG+1d

Massachusetts State AG+1d

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/2025/08/Consumer-notification-letter-12.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 7, 2025
Raw hash: c5400045572ea069635e18addfb0afacaea04dfbe4bce421b104f56fd0bb169f

Linked disclosures

Ransomware claims (1)

Regulatory filings (8) · sorted by filing gap

Reporting entityCONNEX CREDIT UNION

Victim entityCONNEX CREDIT UNION

Incidentdiscovered Jun 3, 2025

Stated responseStarted an investigation using independent experts to assist

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov