MARYLANDHackingHealthcareHealthcarePHIHealth (basic)Identity (basic)MediumContained

Westat, Inc.

bd_0a5c6e5ef62bfc8d · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Nov 3, 2023

To disclose

—

Affected

20,045

Linked

11 records

Confidence

69%

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

Westat, Inc. reported to HHS on 2023-11-03 a Hacking/IT Incident affecting 20045 individuals. Breached information located on Network Server. A software application used by a business associate exposed PHI including names, addresses, DOB, claims, diagnoses, and treatment info. BA provided credit monitoring and enhanced safeguards.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d

⚠ 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

Nov 3, 2023

Filed

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

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 116 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitecl0pbd_752092ce6faa5dd32023-07-10 · +116dVerified by operator

Regulatory filings (9) · sorted by filing gap

South Carolina State AGbd_2e1ea343e7bb4ee72023-10-16 · +18dVerified by operator
Indiana State AGbd_4027da82b6e67c622023-10-13 · +21dVerified
HHS OCRbd_5b63e0b82f445a712023-10-13 · +21dVerified
Vermont State AGbd_03476d52a3c7f6702023-07-21 · +105dVerified

Show 5 more filings ↓up to 105d gap

New Hampshire State AGbd_241c67cca32741002023-07-21 · +105dVerified by operator
Montana State AGbd_8839ed78d84140492023-07-21 · +105dCandidate
Indiana State AGbd_991dc2d92271be1c2023-07-21 · +105dVerified by operator
Maine State AGbd_be6506ff947b42aa2023-07-21 · +105dCandidate
Massachusetts State AGbd_f7f9fd512c2dec0d2023-07-21 · +105dVerified by operator

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

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

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 20,045nationwide
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: T1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified HHS

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

Compliance flags: Leak >90dHHS 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 · 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

South Carolina State AG+87d

HHS OCR+105d · this page

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: Nov 3, 2023
Raw hash: 07505c4aa5c50719e8602e9c36042358b908f1cdbdebe600fc018c6a8f1875e2

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.

text/html1.5 KB

Download View at source

Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityWestat, Inc.

Victim entityWestat, Inc.

IncidentUnauthorized Access

Stated responseNotified HHS

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing