TEXASMalwareHealthcareHealthcareRansomwareData EncryptedRansom DemandedCustomer Data InvolvedData ExfiltratedIdentity (basic)Government IDHealth (basic)CriticalContained

South Texas Oncology and Hematology, PLLC

bd_ddfc9fab5fbd81f6 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Feb 15, 2024

Filed

Apr 19, 2024

To disclose

—

Affected

175,195

Linked

6 filings

Confidence

98%

Full breach record for South Texas Oncology and Hematology, PLLC →

South Texas Oncology and Hematology, PLLC (TX) reported to HHS on 2024-04-19 a ransomware incident affecting 175,195 individuals. PHI involved included names, addresses, dates of birth, Social Security numbers, diagnoses/conditions, lab results, medications, and other treatment information, located on a Network Server. The CE notified HHS, affected individuals, and the media, provided substitute notice, offered complimentary credit monitoring, and implemented additional safeguards and workforce retraining.

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HIPAA clock✓ HHS notified

⚠ 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

discovery → filing · 9 weeks / 64 days

Feb 15, 2024

Discovered

Apr 19, 2024

Filed

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Maine State AGbd_bdbf2714544b67712024-06-13 · +55dVerified
Montana State AGbd_cbd48682a3249f6c2024-06-13 · +55dVerified
Indiana State AGbd_d58cb98b736f71172024-06-13 · +55dVerified
New Hampshire State AGbd_7cf440ecd573dd962024-06-17 · +59dVerified

Show 1 more filing ↓up to 60d gap

Massachusetts State AGbd_e611af7c889253542024-06-18 · +60dVerified

Name: South Texas Oncology and Hematology, PLLC
norm: south texas oncology and hematology
Industry: Health Care Services

Name: South Texas Oncology and Hematology, PLLC
norm: south texas oncology and hematology
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: Feb 15, 2024
Materiality determined: —
Notification sent: —
Affected individuals: 175,195nationwide
Data types: Identity (basic)Government IDHealth (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: HHS OCR notified

During the incident: Notified HHS
Notified affected individuals
Notified media
Provided substitute notice
Changes made: Provided complimentary credit monitoring services to affected individuals
Implemented additional administrative, technical, and security safeguards
Retrained workforce members to better protect PHI
Source: Quoted from the filing itself, not independently verified.

Compliance flags: HHS notified
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.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: Feb 15, 2024
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: Feb 15, 2024 → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

HHS OCRApr 19 · first · this page

Maine State AG+55d

Montana State AG+55d

Indiana State AG+55d

New Hampshire State AG+59d

Massachusetts State AG+60d

Pattern: first filing Apr 19 (TX), last Jun 18 (MA) — a 60-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://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: Apr 19, 2024
Raw hash: f4a36f70b5f0bf85d28692d50f2696c857003e2d916824b719c2ada3eb22fdd3

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Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entitySouth Texas Oncology and Hematology, PLLC

Victim entitySouth Texas Oncology and Hematology, PLLC

Incidentdiscovered Feb 15, 2024

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing