MalwareIdentity (basic)Government IDFinancial accountMediumContained

Tappan Financial Group

bd_335d62c3a47d1662 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Apr 1, 2025

Filed

Sep 8, 2025

To disclose

—

Affected

11state residents only

Linked

2 filings

Confidence

66%

Full breach record for Tappan Financial Group →

Tappan Financial Group experienced unauthorized access and encryption of a server between April 1-2, 2025. An actor exfiltrated files containing names, SSNs, financial account numbers, and driver's licenses of 11 Nebraska residents. Notifications were mailed on September 8, 2025, offering credit monitoring.

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Incident timeline

Apr 1, 2025

Begins

Apr 1, 2025

Discovered

Sep 8, 2025

Filed

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_9c1ab4480ba747922025-09-08Candidate

Name: Tappan Financial Group
norm: tappan financial

Name: Tappan Financial Group
norm: tappan financial

Discovered: Apr 1, 2025
Breach occurred: Apr 1, 2025 – Apr 2, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 8, 2025
Affected individuals: 11state-resident count only
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Initial access: exploit_public_facing

During the incident: Secured the server
Initiated an investigation
Began mailing notification letters via U.S. First-Class Mail
Offered complimentary membership to credit monitoring services through Kroll
Changes made: Implementing additional security measures to enhance existing security procedures
Training employees on data security
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 · 2 filings · 2 states

View merged incident ↗

Indiana State AGSep 8 · first

Nebraska State AGSep 8 · 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/a46828bd-c69f-4bf5-a145-84ad7077a779.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 8, 2025
Raw hash: ec15ddae2b0507dea113aa8abe07265abcc64140fd699533dc37ef0e780fcc09

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityTappan Financial Group

Victim entityTappan Financial Group

Incidentdiscovered Apr 1, 2025

Stated responseSecured the server

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov