HackingHospitalityHospitalityStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDPIIMediumContained

The Historic Thayer Hotel

bd_865aea85ac9a9284 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Sep 19, 2025

Filed

Nov 3, 2025

To disclose

—

Affected

Not disclosed

Linked

11 filings

Confidence

66%

The Historic Thayer Hotel experienced unauthorized access to its computer systems on September 19, 2025. The incident exposed names combined with driver's license, passport, or state ID numbers, and potentially Social Security numbers for a small subset. The hotel notified law enforcement, engaged Kroll Security for forensic investigation and credit monitoring, and issued notices to affected individuals across multiple US states starting October 31, 2025.

J jump to incidentP pin to compareR raw source

Incident timeline

Sep 19, 2025

Begins

Sep 19, 2025

Discovered

Nov 3, 2025

Filed

This filing is one of 11 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

California State AGbd_12aa427de683d4752025-11-03Verified
Indiana State AGbd_5ff7442183fae9c42025-11-03Verified
Maine State AGbd_7e2139f3f98129d02025-11-03Verified
Massachusetts State AGbd_dedd83364d9f23632025-11-03Verified

Show 6 more filings ↓up to 3d gap

Nebraska State AGbd_ebafb05ebc7ff7242025-11-03Verified
Vermont State AGbd_fed038a81b8b76ac2025-11-03Verified
Texas State AGbd_d48218c6d02db3462025-11-04 · +1dVerified
New Hampshire State AGbd_21fe280fdcbdc5b02025-11-05 · +2dVerified
Illinois State AGbd_9f4989b24d7d4ab92025-11-01 · +2dVerified
Montana State AGbd_8009cd56be9477b82025-10-31 · +3dCandidate

Name: The Historic Thayer Hotel
norm: historic thayer hotel
Domain: thethayerhotel.com

Name: The Historic Thayer Hotel
norm: historic thayer hotel
Domain: thethayerhotel.com
Industry: Hospitalityllm

Discovered: Sep 19, 2025
Breach occurred: Sep 19, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 31, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDPII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: notifying appropriate regulators and others as required by governing law
Initial access: valid_credentials

During the incident: Restoring our own access to our systems
Secure our systems against similar events
Notify law enforcement
Launched an investigation with the assistance of third-party forensic specialists and cybersecurity professionals
Analyzing voluminous data to determine the scope of the event
Securing the services of Kroll Security to provide credit monitoring services
Changes made: Implementing additional safety measures to prevent a recurrence
Continually evaluate and modify our practices and internal controls to enhance the security and privacy of personal information
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 · 11 filings · 10 states

View merged incident ↗

Montana State AGOct 31 · first

Illinois State AG+1d

California State AG+3d

Indiana State AG+3d

Maine State AG+3d

Massachusetts State AG+3d

Nebraska State AG+3d

Vermont State AG+3d

Nebraska State AG+3d · this page

Texas State AG+4d

New Hampshire State AG+5d

Pattern: first filing Oct 31 (MT), last Nov 5 (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://nebraska.gov/ago/data-breach/documents/5bb2a4d4-60e5-413d-8dfe-9496d6918851.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 3, 2025
Raw hash: adc900ab95c8d9af9846ce9db4388cab8ad51d6f188ca4b004fb01929a9d5e71

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityThe Historic Thayer Hotel

Victim entityThe Historic Thayer Hotel

Incidentdiscovered Sep 19, 2025

Stated responseRestoring our own access to our systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov