HackingFinancial ServicesFinanceStolen CredentialsData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)Financial accountMediumContained

First National Bank of Clarksdale

bd_9b5d2ef02ed6cb1e · schema v1 · pii pii-v2

Severity

Medium

Discovered

Sep 8, 2025

Filed

Sep 24, 2025

To disclose

—

Affected

8state residents only

Linked

4 filings

Confidence

66%

Full breach record for First National Bank of Clarksdale →

First National Bank of Clarksdale reported unauthorized access to its computer network between June 4-5, 2025. The bank discovered on September 8, 2025, that files containing names, Social Security numbers, and financial account numbers of 8 Nebraska residents were accessed. Notifications were sent on September 24, 2025, offering one year of credit monitoring. The bank notified law enforcement, secured its network, and enhanced security protocols.

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Incident timeline

undetected · 96 days

Jun 4, 2025

Begins

Sep 8, 2025

Discovered

Sep 24, 2025

Filed

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

Maine State AGbd_07a8e3d85e2ad50c2025-09-24Candidate
Massachusetts State AGbd_2dc562f78f14eb4d2025-09-24Verified
Indiana State AGbd_ceba33ed397ac87a2025-09-24Verified

Name: First National Bank of Clarksdale
norm: first national bank of clarksdale

Name: First National Bank of Clarksdale
norm: first national bank of clarksdale
Industry: Financial Servicesllm

Discovered: Sep 8, 2025
Breach occurred: Jun 4, 2025 – Jun 5, 2025
Undetected for: 96 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 24, 2025
Affected individuals: 8state-resident count only
Data types: Government IDIdentity (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Notified law enforcement
Secured its network
Initiated an investigation
Sent notification letters via U.S. First-Class mail to the Nebraska residents
Offered one year of complimentary credit monitoring and identity theft restoration services through Epiq Privacy Solutions ID
Established a toll-free call center
Changes made: Taken steps to enhance its existing security protocols
Source: Quoted from the filing itself, not independently verified.

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 ↗

Maine State AGSep 24 · first

Massachusetts State AGSep 24 · first

Indiana State AGSep 24 · first

Nebraska State AGSep 24 · 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://nebraska.gov/ago/data-breach/documents/26fc6626-bc39-4046-b959-96aca7d36a25.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 24, 2025
Raw hash: 5c152fb1e1355918224090ec428638323bd893ade96e4818e019cf4375be18f5

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityFirst National Bank of Clarksdale

Victim entityFirst National Bank of Clarksdale

Incidentdiscovered Sep 8, 2025

Stated responseNotified law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov