Social EngineeringProfessional ServicesProfessional ServicesPhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountMediumContained

CBIZ, INC.

bd_224adedd71862c65 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 13, 2018

Filed

Jul 18, 2018

To disclose

5 weeks

Affected

1state residents only

Linked

3 filings

Confidence

66%

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

CBIZ MHM, LLC notified the NH Attorney General of a security incident affecting one NH resident. Unauthorized access to an employee's email occurred May 21-22, 2018, discovered June 13, 2018. Data included names, SSNs, driver's licenses, and financial account numbers. Notifications sent July 19, 2018, with credit monitoring offered.

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Incident timeline

undetected · 23 days

discovery → filing · 5 weeks / 35 days

May 21, 2018

Begins

Jun 13, 2018

Discovered

Jul 18, 2018

Filed

vs. sector median

13 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Montana State AGbd_aedf62afbd2007372018-07-18Candidate
Massachusetts State AGbd_f54611dbcdc54cd22018-07-18Verified

Name: BAKER & HOSTETLER LLP
norm: baker hostetler

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

Discovered: Jun 13, 2018
Breach occurred: May 21, 2018 – May 22, 2018
Undetected for: 23 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 19, 2018
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: phishing_link

During the incident: Immediately reset the employee's password and changed account settings to enhance security
Undertook a comprehensive review of the emails in the employee's email account
Mail notification letters via U.S. mail
Offering eligible individuals a complimentary, one-year membership in credit monitoring and identity theft protection services from Experian
Taking and is continuing to take significant steps to enhance its existing email security measures
Provide additional training to employees on the dangers of phishing emails
Changes made: Enhance its existing email security measures
Provide additional training to employees on the dangers of phishing emails
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(35 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Montana State AGJul 18 · first

Massachusetts State AGJul 18 · first

New Hampshire State AGJul 18 · 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-20180718.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 18, 2018
Raw hash: de88753adb0c0e06d8d02d7e61857a0c831bb88b4e810afea84cf8ef61781f9b

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityBAKER & HOSTETLER LLP

Victim entityCBIZ, INC.

Incidentdiscovered Jun 13, 2018

Stated responseImmediately reset the employee's password and changed account settings to enhance security

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov