NEW JERSEYHackingHealthcareHealthcareBusiness Associate (HIPAA)Customer Data InvolvedPHIHealth (basic)Identity (basic)Government IDFinancial accountCriticalContained

CBIZ, INC.

bd_b21836f9b07f5b0e · schema v1 · pii pii-v1

Severity

Critical

Discovered

—

Filed

Nov 10, 2023

To disclose

—

Affected

436,198

Linked

5 filings

Confidence

67%

Full breach record for CBIZ, INC. →7 incidents on file

CBIZ KA Consulting Services, LLC reported to HHS on 2023-11-10 a Hacking/IT Incident affecting 436,198 individuals. Breached information located on Network Server. A software application used by its vendor exposed PHI including names, DOB, addresses, SSN, driver's license, diagnoses, and financial/insurance data. The BA implemented additional administrative, technical, and security safeguards.

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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

Nov 10, 2023

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_a81b1fd6324d50b12023-12-29 · +49dVerified by operator
Maine State AGbd_b2aef612a1f1ebc82023-09-01 · +70dVerified by operator
California State AGbd_bc1e70e9424da1a02023-09-01 · +70dVerified by operator
Vermont State AGbd_f5753075017fc5292023-09-01 · +70dVerified by operator

Name: CBIZ, INC.
norm: cbiz
Domain: cbiz.com
Industry: Health Care Services

Name: CBIZ, INC.
norm: cbiz
Domain: cbiz.com
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 436,198nationwide
Data types: PHIHealth (basic)Identity (basic)Government IDFinancial account
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
Third party: via vendorbusiness associate
Initial access: exploit_public_facing

During the incident: Notified HHS
Notified affected individuals
Notified the media
Provided substitute notice
Implemented additional administrative, technical, and security safeguards to better protect PHI
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 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 · 5 filings · 4 states

View merged incident ↗

Maine State AGSep 1 · first

California State AGSep 1 · first

Vermont State AGSep 1 · first

HHS OCR+70d · this page

Maine State AG+119d

Pattern: first filing Sep 1 (ME), last Dec 29 (ME) — a 119-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 10, 2023
Raw hash: e41120f038de562ef7b8d99ae79c1be13224ac15fc8f9589a1eba9e3684cedb9

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Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityCBIZ, INC.

Victim entityCBIZ, INC.

IncidentUnauthorized Access

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing