HackingHealthcareHealthcareStolen CredentialsData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)PHIMediumContained

Excelsior Orthopaedics, LLC

bd_72914f9f10127101 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 23, 2024

Filed

Sep 2, 2025

To disclose

15 months

Affected

Not disclosed

Linked

14 records

Confidence

65%

Full breach record for Excelsior Orthopaedics, LLC →

Supplemental notice from Excelsior Orthopaedics, LLP regarding a data breach occurring June 18-27, 2024. Unauthorized access compromised patient and employee data including names, DOBs, SSNs, driver's licenses, and medical/insurance info. The company engaged forensic investigators, reported to the FBI, and is offering credit monitoring. This notice covers additional data types identified in a subsequent review.

J jump to incidentP pin to compareR raw source

Vermont clock✗ VT AG >45 bday15 months discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 5 days

discovery → filing · 15 months / 436 days

Jun 18, 2024

Begins

Jun 23, 2024

Discovered

Sep 2, 2025

Filed

vs. sector median

+53 wks slower

This filing is one of 14 records about the same incident.View merged incident

A leak claim by monti about this victim was first seen 420 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

New Hampshire State AGbd_92f6df0276dccd5b2025-09-02Verified by operator
Maine State AGbd_c9fe70461413b0eb2025-08-29 · +4dVerified
Maryland State AGbd_363c3e7a23ad9f0e2025-11-13 · +72dVerified by operator
New Hampshire State AGbd_2afc63efdc3046202025-01-13 · +232dVerified by operator

Show 6 more filings ↓up to 377d gap

Montana State AGbd_76cf493d1fa747b22025-01-07 · +238dVerified by operator
Massachusetts State AGbd_8bb0c75c7df2dc022025-01-07 · +238dVerified by operator
Maine State AGbd_e5fe309e68f4ebbd2025-01-07 · +238dVerified
Indiana State AGbd_0323801445708f2c2024-12-31 · +245dVerified by operator
Nebraska State AGbd_9e0fe91e91c379cf2024-12-31 · +245dVerified
Nebraska State AGbd_685d9a01864afc332024-08-21 · +377dVerified

Showing first 10 of 13 linked disclosures.

Name: Excelsior Orthopaedics, LLC
norm: excelsior orthopaedics
Domain: excelsiorortho.com

Name: Excelsior Orthopaedics, LLC
norm: excelsior orthopaedics
Domain: excelsiorortho.com
Industry: Healthcarellm

Discovered: Jun 23, 2024
Breach occurred: Jun 18, 2024 – Jun 27, 2024
Undetected for: 5 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 26, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDHealth (basic)PHI
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Reported this incident to the FBI and cooperated with law enforcement investigations
Initial access: valid_credentials

During the incident: Disconnected all external access to the network
Isolated suspect equipment
Changed credentials across the organization
Engaged a specialized third-party cybersecurity firm
Reported this incident to the FBI and cooperated with law enforcement investigations
Changes made: Deployed new security tools
Redesigned key system and business processes
Partnered with a first-in-class managed security provider
Implemented enhanced internal security awareness campaigns and system alerts
Providing free credit monitoring and identity theft protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 months(436 days from discovery to filing)
Compliance flags: VT AG >45 bdayLeak >180d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 8 states

View merged incident ↗

Nebraska State AGAug 21 · first

Indiana State AG+132d

Nebraska State AG+132d

Montana State AG+139d

Massachusetts State AG+139d

Maine State AG+139d

New Hampshire State AG+145d

Maine State AG+373d

New Hampshire State AG+377d

Vermont State AG+377d · this page

Maryland State AG+449d

Pattern: first filing Aug 21 (NE), last Nov 13 (MD) — a 449-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 13 — the full spread may be wider.

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://ago.vermont.gov/document/2025-09-02-excelsior-orthopaedics-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 2, 2025
Raw hash: 486a8e6feba45955ca9122009591782e1500f69227947b769fcd6e8ca3030f2e

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityExcelsior Orthopaedics, LLC

Victim entityExcelsior Orthopaedics, LLC

Incidentdiscovered Jun 23, 2024

Stated responseDisconnected all external access to the network

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov