NEW YORKMalwareHealthcareHealthcareRansomwareBusiness Associate (HIPAA)Customer Data InvolvedData EncryptedRansom DemandedIdentity (basic)Health (basic)MediumContained

Mount Sinai Health System

bd_e51f3eb93a4788be · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Sep 13, 2020

To disclose

—

Affected

87,535

Confidence

98%

Full breach record for Mount Sinai Health System →4 incidents on file

Mount Sinai Health System (NY) reported to HHS on 2020-09-13 a Hacking/IT Incident (ransomware) affecting 87,535 individuals. The breach occurred at a business associate and impacted ePHI stored on a network server, including names, addresses, phone numbers, dates of birth, email addresses, gender, and treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice.

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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

Sep 13, 2020

Filed

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

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed87,535 affectedView incident

Name: Mount Sinai Health System
norm: mount sinai health system
Domain: mountsinai.org
Industry: Health Care Services

Name: Mount Sinai Health System
norm: mount sinai health system
Domain: mountsinai.org
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 87,535nationwide
Data types: Identity (basic)Health (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare providerBusiness associate involved
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: HHS OCR notified

During the incident: Notified HHS
Notified affected individuals
Notified media
Provided substitute notice
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.

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: Sep 13, 2020
Raw hash: a3e2c54533d46df7a0ee0fd667671a28b1841be0f39265ff50b42023b3ff1151

AI-assisted summary above. The structured extract on this page was generated from the document below. Inspect the source to verify or correct any field.

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Reporting entityMount Sinai Health System

Victim entityMount Sinai Health System

IncidentUnauthorized Access

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing