HackingFinancial ServicesFinanceCustomer Data InvolvedIdentity (basic)Financial accountMediumContained

KOHLER CREDIT UNION

bd_02eecfc3839c71a6 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 25, 2021

Filed

Mar 25, 2021

To disclose

28 days

Affected · nationwide

13,7144 in this filing

Linked

3 filings

Confidence

66%

Full breach record for KOHLER CREDIT UNION →

Kohler Credit Union reported an external system breach (hacking) occurring between September 23, 2020, and November 30, 2020, discovered on February 25, 2021. The incident affected 13,714 individuals, including 4 Maine residents. Acquired data included names and financial account or credit/debit card numbers (with security codes/PINs). The Credit Union provided written notification and offered one year of Experian IdentityWorks services.

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Maine clockDiscovered Feb 25, 2021 → Filed with AG Mar 25, 202128d ✓ ME AG ≤30d28 days discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 155 days

discovery → filing · 28 days

Sep 23, 2020

Begins

Feb 25, 2021

Discovered

Mar 25, 2021

Filed

vs. sector median

4 wks faster

This filing is one of 3 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Montana State AGbd_1e6f37e90209ef2e2021-03-25Verified by operator
Massachusetts State AGbd_e214d615de62f86b2021-03-26 · +1dVerified

Name: KOHLER CREDIT UNION
norm: kohler credit union

Name: KOHLER CREDIT UNION
norm: kohler credit union
Industry: Financial Servicesllm

Discovered: Feb 25, 2021
Breach occurred: Sep 23, 2020 – Nov 30, 2020
Undetected for: 155 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 25, 2021
Affected individuals: 13,714state + nationwide
Data types: Identity (basic)Financial account
Data elements: Financial account number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Sent written notification to affected consumers
Offered 1 Year of Experian IdentityWorks Credit 3B identity protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: ME AG ≤30d · 28d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Feb 25, 2021
→ Filed with AG: Mar 25, 2021
28d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Feb 25, 2021 → Filed with AG: Mar 25, 2021	28d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Montana State AGMar 25 · first

Maine State AGMar 25 · first · this page

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/2462b282-1cea-495b-bf4a-1da5553972a5.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 25, 2021
Raw hash: 4a06fbc013744b4f9ed4d06f2575c805c988c16d6737e0b5b20728d4ebd9f423

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityKOHLER CREDIT UNION

Victim entityKOHLER CREDIT UNION

Incidentdiscovered Feb 25, 2021

Stated responseSent written notification to affected consumers

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov