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

Confidence

68%

Full breach record for CBIZ, INC. →7 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.

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Incident timeline — partial

? — ?

Breach window unknown

Dec 29, 2023

Filed

—

No filing yet · watching

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

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

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed3,238 affectedView incident

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.

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

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