HackingProfessional ServicesProfessional ServicesVulnerability ExploitData ExfiltratedCustomer Data InvolvedDelayed DiscoveryPIIIdentity (basic)LowContained

CBIZ, INC.

bd_ab8685161ea5f6d1 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Sep 1, 2023

To disclose

—

Affected

77state residents only

Linked

4 filings

Confidence

66%

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

CBIZ, Inc. notified the New Hampshire Attorney General on September 1, 2023, regarding a MOVEit Transfer vulnerability exploited between May 29 and June 5, 2023. The incident affected 77 New Hampshire residents. CBIZ applied patches, investigated, and mailed notifications offering credit monitoring. Data exfiltrated included personal information.

J jump to incidentP pin to compareR raw source

Incident timeline

May 29, 2023

Begins

Sep 1, 2023

Filed

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_59823e08633c31c12023-09-01Verified
Montana State AGbd_79465978a9228cee2023-09-01Candidate
Indiana State AGbd_babe041abe73d82b2023-09-01Verified

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

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

Discovered: —
Breach occurred: May 29, 2023 – Jun 5, 2023
Materiality determined: —
Notification sent: Sep 1, 2023
Affected individuals: 77state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General's Office
Initial access: exploit_public_facing

During the incident: Applied patches made available by Progress Software
Launched an investigation with the assistance of cybersecurity professionals
Conducted a review of the files involved
Mailed notifications to New Hampshire residents via U.S. First-Class mail
Offered complimentary credit monitoring, fraud consultation, and identity theft restoration services through Kroll
Changes made: Patched the MOVEit vulnerability
Reviewed the protocols in place with vendors to help prevent similar incidents
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 · 4 filings · 4 states

View merged incident ↗

Massachusetts State AGSep 1 · first

Montana State AGSep 1 · first

Indiana State AGSep 1 · first

New Hampshire State AGSep 1 · first · this page

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-20230901.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 1, 2023
Raw hash: 74de955e42cd5ea18b1fb05cbf632d1732dd52325bf646640689613719ce7b0c

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCBIZ, INC.

Victim entityCBIZ, INC.

IncidentUnauthorized Access

Stated responseApplied patches made available by Progress Software

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov