MARYLANDHackingHealthcareHealthcareBusiness Associate (HIPAA)Customer Data InvolvedPHIHealth (basic)Identity (basic)Medium

Westat, Inc.

bd_5b63e0b82f445a71 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 22, 2023

Filed

Oct 13, 2023

To disclose

—

Affected

51,513

Linked

11 records

Confidence

93%

Full breach record for Westat, Inc. →2 incidents on file

Westat, Inc. reported to HHS on 2023-10-13 a Hacking/IT Incident affecting 51,513 individuals. A software application used by its business associate exposed PHI including names, addresses, dates of birth, claims information, diagnoses/conditions, and treatment information. Breached information located on a Network Server. The BA notified HHS and affected individuals, provided substitute notice, and offered complimentary credit monitoring services.

J jump to incidentP pin to compareR raw source

HIPAA clock✗ HHS report late

⚠ 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 · 16 weeks / 113 days

Jun 22, 2023

Discovered

Oct 13, 2023

Filed

This filing is one of 11 records about the same incident.View merged incident

A leak claim by cl0p about this victim was first seen 95 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitecl0pbd_752092ce6faa5dd32023-07-10 · +95dVerified by operator

Regulatory filings (9) · sorted by filing gap

Indiana State AGbd_4027da82b6e67c622023-10-13Verified
South Carolina State AGbd_2e1ea343e7bb4ee72023-10-16 · +3dVerified by operator
HHS OCRbd_0a5c6e5ef62bfc8d2023-11-03 · +21dCandidate
Vermont State AGbd_03476d52a3c7f6702023-07-21 · +84dVerified

Show 5 more filings ↓up to 84d gap

New Hampshire State AGbd_241c67cca32741002023-07-21 · +84dVerified by operator
Montana State AGbd_8839ed78d84140492023-07-21 · +84dCandidate
Indiana State AGbd_991dc2d92271be1c2023-07-21 · +84dVerified by operator
Maine State AGbd_be6506ff947b42aa2023-07-21 · +84dCandidate
Massachusetts State AGbd_f7f9fd512c2dec0d2023-07-21 · +84dVerified by operator

Name: Westat, Inc.
norm: westat
Domain: westat.com
Industry: Health Care Services

Name: Westat, Inc.
norm: westat
Domain: westat.com
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: Jun 22, 2023
Materiality determined: —
Notification sent: —
Affected individuals: 51,513nationwide
Data types: PHIHealth (basic)Identity (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Business associate
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Notified HHS

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

Compliance flags: HHS report lateLeak >90dHHS 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: Jun 22, 2023
→ Notified: not extracted
— 60 days HHS report late
HIPAA
Discovered: Jun 22, 2023
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: Jun 22, 2023 → Notified: not extracted	—	60 days	HHS report late
HIPAA	Discovered: Jun 22, 2023 → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 8 states

View merged incident ↗

Vermont State AGJul 21 · first

New Hampshire State AGJul 21 · first

Montana State AGJul 21 · first

Indiana State AGJul 21 · first

Maine State AGJul 21 · first

Massachusetts State AGJul 21 · first

Indiana State AG+84d

HHS OCR+84d · this page

South Carolina State AG+87d

HHS OCR+105d

Pattern: first filing Jul 21 (VT), last Nov 3 (MD) — a 105-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: Oct 13, 2023
Raw hash: 21020eb1e4c669ce936f5d9eafba1a42041c3af05b066b48432b47e36c447c5b

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Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityWestat, Inc.

Victim entityWestat, Inc.

Incidentdiscovered Jun 22, 2023

Stated responseThe BA notified HHS, the affected individuals, and provided substitute notice

ComplianceHHS report late

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing