MalwareFinancial ServicesFinanceRansomwareData ExfiltratedCustomer Data InvolvedRansom DemandedIdentity (basic)Government IDFinancial accountMediumContained

American National Bank & Trust

bd_2e53d41eeec00850 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Jan 22, 2025

Filed

May 23, 2025

To disclose

—

Affected

66state residents only

Linked

6 filings

Confidence

66%

Full breach record for American National Bank & Trust →4 incidents on file

American National Bank & Trust disclosed a ransomware incident affecting 66 Nebraska residents. Unauthorized access occurred Jan 21-22, 2025, resulting in file encryption and exfiltration of names, SSNs, driver's license numbers, and financial account data. The bank engaged a cybersecurity firm, notified law enforcement, and mailed notifications on May 23, 2025, offering one year of credit monitoring.

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Incident timeline

undetected · 1 days

Jan 21, 2025

Begins

Jan 22, 2025

Discovered

May 23, 2025

Filed

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

California State AGbd_35e3054c47f8c27e2025-05-23Candidate
Montana State AGbd_419c255229ac248f2025-05-23Verified
Massachusetts State AGbd_709337888103d8182025-05-23Verified
New Hampshire State AGbd_83cdb0d7a81cabca2025-05-23Verified

Show 1 more filing ↓

Vermont State AGbd_fbf7dd6548243e812025-05-23Verified

Name: American National Bank & Trust
norm: american national bank

Name: American National Bank & Trust
norm: american national bank
Industry: Financial Servicesllm

Discovered: Jan 22, 2025
Breach occurred: Jan 21, 2025 – Jan 22, 2025
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: May 23, 2025
Affected individuals: 66state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified law enforcement

During the incident: Implemented its response protocols
Took measures to contain the activity
Launched an investigation
Engaged a cybersecurity firm
Notified law enforcement
Mailing notification letters via First-Class mail
Offering a complimentary, one-year membership to credit monitoring and identity protection services
Established a dedicated, toll-free call center
Changes made: Taken steps to enhance its existing security measures
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 · 6 filings · 6 states

View merged incident ↗

California State AGMay 23 · first

Montana State AGMay 23 · first

Massachusetts State AGMay 23 · first

New Hampshire State AGMay 23 · first

Vermont State AGMay 23 · first

Nebraska State AGMay 23 · 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/486793ef-bfba-4b7a-bbb0-7d018cc4a1c0.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 23, 2025
Raw hash: 9966e7a41731b781142955939e9fcc6502a72bff7db3e507082d760f2a8037f0

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityAmerican National Bank & Trust

Victim entityAmerican National Bank & Trust

Incidentdiscovered Jan 22, 2025

Stated responseImplemented its response protocols

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov