MalwareFinancial ServicesFinanceRansomwareData EncryptedTargetedFinancial accountIdentity (basic)Government IDPHIHealth (basic)MediumContained

Abri Credit Union

bd_9b8ebb2fcf25f107 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 1, 2025

Filed

Dec 30, 2025

To disclose

29 days

Affected

629state residents only

Linked

4 filings

Confidence

66%

Full breach record for Abri Credit Union →

Abri Credit Union experienced a ransomware cyberattack affecting 629 Washington residents. Unauthorized access occurred May 3-4, 2024; discovered Dec 1, 2025. Full names were accessed. The credit union engaged external forensic investigators and offered complimentary Experian IdentityWorks membership.

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Incident timeline

undetected · 577 days

discovery → filing · 29 days

May 3, 2024

Begins

Dec 1, 2025

Discovered

Dec 30, 2025

Filed

vs. sector median

4 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_17f4c1ab57e2e10d2025-12-30Verified
Nebraska State AGbd_6035f52334b3027e2025-12-30Verified
Indiana State AGbd_7ab2c94ba4fb59802025-12-30Verified

Name: Abri Credit Union
norm: abri credit union

Name: Abri Credit Union
norm: abri credit union
Industry: Financial Servicesllm

Discovered: Dec 1, 2025
Breach occurred: May 3, 2024 – May 4, 2024
Undetected for: 577 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 629state-resident count only
Data types: Identity (basic)
Data elements: NameDriver's licence numberFinancial account numberPassport numberHealth insurance ID
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial

During the incident: Commenced a prompt and thorough investigation with external cybersecurity professionals
Offering a complimentary membership of Experian IdentityWorks
Changes made: Continually evaluate and modify our practices and internal controls to enhance the security and privacy of your personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 days(29 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Massachusetts State AGDec 30 · first

Nebraska State AGDec 30 · first

Indiana State AGDec 30 · first

Washington State AGDec 30 · 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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA35982.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 30, 2025
Raw hash: f322c6109267ac97344fe04e250906dad4a6b6e99065d6c7d78149d2fa94b320

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityAbri Credit Union

Victim entityAbri Credit Union

Incidentdiscovered Dec 1, 2025

Stated responseCommenced a prompt and thorough investigation with external cybersecurity professionals

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com