HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedSupply Chain (3P Vendor)PIIMediumContained

CBIZ, INC.

bd_58c107ea2a926a35 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Dec 29, 2023

To disclose

—

Affected

3,238state residents only

Linked

11 filings

Confidence

68%

Full breach record for CBIZ, INC. →4 incidents on file

CBIZ, Inc. filed a supplemental notification with the New Hampshire Attorney General regarding the MOVEit security incident. The company mailed notification letters to 3,238 New Hampshire residents whose personal information was involved. CBIZ is offering complimentary credit monitoring and identity theft restoration services through Kroll.

J jump to incidentP pin to compareR raw source

Incident timeline — partial

? — ?

Breach window unknown

Dec 29, 2023

Filed

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

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

Part of Progress Software Corporation supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Maine State AGbd_a81b1fd6324d50b12023-12-29Verified by operator
HHS OCRbd_b21836f9b07f5b0e2023-11-10 · +49dVerified by operator
South Carolina State AGbd_1c8025d02f0809fc2023-09-05 · +115dVerified by operator
Massachusetts State AGbd_59823e08633c31c12023-09-01 · +119dVerified by operator

Show 6 more filings ↓up to 119d gap

Montana State AGbd_79465978a9228cee2023-09-01 · +119dVerified by operator
New Hampshire State AGbd_ab8685161ea5f6d12023-09-01 · +119dVerified by operator
Maine State AGbd_b2aef612a1f1ebc82023-09-01 · +119dVerified by operator
Indiana State AGbd_babe041abe73d82b2023-09-01 · +119dVerified by operator
California State AGbd_bc1e70e9424da1a02023-09-01 · +119dVerified by operator
Vermont State AGbd_f5753075017fc5292023-09-01 · +119dVerified by operator

Name: CBIZ, INC.
norm: cbiz
Domain: cbiz.com

Name: CBIZ, INC.
norm: cbiz
Domain: cbiz.com
Industry: Professional Servicesllm

Discovered: —
Materiality determined: —
Notification sent: Dec 29, 2023
Affected individuals: 3,238state-resident count only
Data types: PII
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Regulator citations: Filed supplemental incident notification with New Hampshire Attorney General's Office
Third party: via MOVEit (Progress Software)
Initial access: supply_chain

During the incident: Mailed notification letters via United States Postal Service First-Class mail to 3,238 New Hampshire residents
Offering complimentary credit monitoring, fraud consultation, and identity theft restoration services through Kroll
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 9 states

View merged incident ↗

Massachusetts State AGSep 1 · first

Montana State AGSep 1 · first

New Hampshire State AGSep 1 · first

Maine State AGSep 1 · first

Indiana State AGSep 1 · first

California State AGSep 1 · first

Vermont State AGSep 1 · first

South Carolina State AG+4d

HHS OCR+70d

Maine State AG+119d

New Hampshire State AG+119d · this page

Pattern: first filing Sep 1 (MA), last Dec 29 (NH) — 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://mm.nh.gov/files/uploads/doj/remote-docs/cbiz-20231229.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 29, 2023
Raw hash: b428e6d3cd65eac2142e685eb919ef6f9d0e56f65efb8576a69a3cb6c04e3005

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityCBIZ, INC.

Victim entityCBIZ, INC.

IncidentThird-Party / Supply Chain

Stated responseMailed notification letters via United States Postal Service First-Class mail to 3,238 New Hampshire residents

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov