MARYLANDHackingHealthcareHealthcareSupply Chain (3P Vendor)Business Associate (HIPAA)Customer Data InvolvedPHIPIIIDENTITY_BASICIDENTITY_GOVERNMENTHEALTH_BASICCriticalResolved

MedStar St. Mary's Hospital

bd_03b72af862dd9d81 · schema v1 · pii pii-v1

Full breach record for MedStar St. Mary's Hospital →

MedStar St. Mary's Hospital (MD) reported to HHS OCR that its business associate experienced a cybersecurity attack affecting PHI of 172,915 individuals. Compromised data included names, addresses, dates of birth, driver's license numbers, Social Security numbers, diagnoses/conditions, lab results, medications, and health insurance information. The breach was reported on 2025-05-29 and involved a network server. Response included HHS, individual, and media notifications, substitute notice, complimentary credit monitoring, and implementation of additional safeguards. The specific business associate is not named in the OCR portal entry.

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.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed172,915 affectedView incident

Source provenance

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: May 29, 2025
Raw hash: da5f0e09d611168738d4b97787542269766ff587ff0a4d7a420af8f829cf60bf

Source filing

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 entity

Name: MedStar St. Mary's Hospital
norm: medstar st mary s hospital
Industry: Healthcare Provider

Victim entity

Name: MedStar St. Mary's Hospital
norm: medstar st mary s hospital
Industry: Healthcare Provider
Industry: Healthcaresource default

Incident

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 172,915
Data types: PHIPIIIDENTITY_BASICIDENTITY_GOVERNMENTHEALTH_BASIC
Attack vector: Third-Party / Supply Chain
Threat actor: External
Regulator citations: HHS OCR breach report filed

Compliance

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

Extraction provenance

Status: No extraction artifact recorded for this disclosure.