MisuseFinancial ServicesFinancePrivilege AbuseCustomer Data InvolvedIdentity (basic)Government IDMediumContained

1ST MIDAMERICA CREDIT UNION

bd_ccbf5bf18e1e8123 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 1, 2021

Filed

Oct 12, 2021

To disclose

23 weeks

Affected

4state residents only

Linked

3 filings

Confidence

65%

Full breach record for 1ST MIDAMERICA CREDIT UNION →3 incidents on file

1st MidAmerica Credit Union notified the NH AG of a data event where an unauthorized email was sent from an employee's account. Unauthorized access occurred May 12-20, 2021. Data potentially exposed included names, SSNs, DOBs, and driver's licenses. 4 NH residents affected. No evidence of data download or misuse. Credit monitoring offered.

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Incident timeline

May 12, 2021

Begins

Oct 12, 2021

Filed

vs. sector median

+15 wks slower

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_0a9fb35a88198b0e2021-10-07 · +5dVerified
Indiana State AGbd_aaada520be85f4562021-10-07 · +5dVerified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: 1ST MIDAMERICA CREDIT UNION
norm: 1st midamerica credit union
Industry: Financial Servicesllm

Discovered: May 1, 2021
Breach occurred: May 12, 2021 – May 20, 2021
Materiality determined: —
Notification sent: Oct 7, 2021
Affected individuals: 4state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Insider
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: Internal
Initial access: insider_action

During the incident: Launched an investigation with the assistance of third-party computer forensic specialists
Took steps to review the contents of the account to identify whether it contained any sensitive information
Provided written notice of this incident to all affected individuals
Providing access to credit monitoring services for two years, through Experian, to individuals whose personal information was potentially affected
Changes made: Working to implement additional safeguards and training to its employees
Continually update security protocol
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(164 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 AGOct 7 · first

Indiana State AGOct 7 · first

New Hampshire State AG+5d · this page

Pattern: first filing Oct 7 (MA), last Oct 12 (NH) — a 5-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://mm.nh.gov/files/uploads/doj/remote-docs/midamerica-credit-union-20211012.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 12, 2021
Raw hash: 7d387e2b8a6100ccf7fc87336cd6f7ea29d0160af0da8fc65f4b04f3c59d0cf4

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entity1ST MIDAMERICA CREDIT UNION

Incidentdiscovered May 1, 2021

Stated responseLaunched an investigation with the assistance of third-party computer forensic specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov