NEW YORKHackingHealthcareHealthcareCustomer Data InvolvedPHIIdentity (basic)Government IDHealth (basic)FinancialHighResolved

The Mount Kisco Surgery Center LLC

bd_d25e9f8730294417 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Jun 25, 2024

To disclose

—

Affected

22,139

Linked

5 filings

Confidence

95%

Full breach record for The Mount Kisco Surgery Center LLC →

The Mount Kisco Surgery Center LLC d/b/a The Ambulatory Surgery Center of Westchester (NY) reported a hacking/IT incident to HHS on 2024-06-25 affecting 22,139 individuals. Breached PHI was located in email and included names, SSNs, driver's license/state ID numbers, dates of birth, diagnoses, medications, claims, financial information, and health insurance/treatment information. The responsible employee was sanctioned and complimentary credit monitoring was provided.

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HIPAA clock✓ HHS notified

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Jun 25, 2024

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

This filing is one of 5 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_20749848567ed2802024-06-26 · +1dVerified
Vermont State AGbd_8af3e03d49b068302024-06-26 · +1dCandidate
Indiana State AGbd_98faef4f7fe7242f2024-06-26 · +1dVerified
New Hampshire State AGbd_9a8fe933940dea3e2024-06-26 · +1dVerified

Name: The Mount Kisco Surgery Center LLC
norm: the mount kisco surgery center
Industry: Health Care Services

Name: The Mount Kisco Surgery Center LLC
norm: the mount kisco surgery center
Industry: Health Care Services
Also named: The Mount Kisco Surgery Center LLCdba oflegal entity
The Ambulatory Surgery Center of Westchesterdba oftrade name
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 22,139nationwide
Data types: PHIIdentity (basic)Government IDHealth (basic)Financial
HHS breach type: Hacking / IT incident
Where the data lived: Email
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: Internal
Regulator citations: Notified HHSNotified affected individualsNotified the media

During the incident: Provided complimentary credit monitoring services
Notified HHS, affected individuals, and the media
Sanctioned the responsible employee
Changes made: Implemented additional administrative, technical, and security safeguards
Source: Quoted from the filing itself, not independently verified.

Compliance flags: HHS notified
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: not extracted
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: not extracted → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

HHS OCRJun 25 · first · this page

Maine State AG+1d

Vermont State AG+1d

Indiana State AG+1d

New Hampshire State AG+1d

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://ocrportal.hhs.gov/ocr/breach/breach_report.jsf
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Jun 25, 2024
Raw hash: a2521423ea8998953291847ef73a65d89710ce4e101650af6c60a143e2ef0089

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Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityThe Mount Kisco Surgery Center LLC

Victim entityThe Mount Kisco Surgery Center LLC

IncidentUnauthorized Access

Stated responseProvided complimentary credit monitoring services

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing