HackingProfessional ServicesTechnologyProfessional ServicesStolen CredentialsTargetedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Robert Half International Inc.

bd_aa1189f3d257e9cd · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 16, 2022

Filed

Jun 16, 2022

To disclose

4 weeks

Affected

13state residents only

Linked

4 filings

Confidence

66%

Full breach record for Robert Half International Inc. →2 incidents on file

Robert Half International Inc. notified the NH AG of a security incident involving suspicious login activity on RobertHalf.com accounts between April 26 and May 31, 2022. 13 NH residents were notified. Data involved included names, SSNs, and wage/tax info. No evidence of actual data access was found. Robert Half reset passwords, strengthened authentication, engaged forensic counsel, and notified law enforcement.

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Incident timeline

undetected · 20 days

discovery → filing · 4 weeks / 31 days

Apr 26, 2022

Begins

May 16, 2022

Discovered

Jun 16, 2022

Filed

vs. sector median

13 wks faster

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

Indiana State AGbd_0bfa433c1f79930d2022-06-14 · +2dVerified
Massachusetts State AGbd_1298318ed459ed0a2022-06-14 · +2dVerified
Maine State AGbd_6c3f6c5c732e0eb92022-06-14 · +2dCandidate

Name: Robert Half International Inc.
norm: robert half
Domain: roberthalf.com
Industry: Professional Services

Name: Robert Half International Inc.
norm: robert half
Domain: roberthalf.com
Industry: Professional Services
Industry: Professional ServicesllmTechnologyllm

Discovered: May 16, 2022
Breach occurred: Apr 26, 2022 – May 31, 2022
Undetected for: 20 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 14, 2022
Affected individuals: 13state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General Consumer Protection Bureau
Initial access: valid_credentials

During the incident: Reset user passwords
Took steps to strengthen authentication controls for the RobertHalf.com application
Commenced an investigation with the assistance of a leading cybersecurity firm
Notified law enforcement
Changes made: Strengthen authentication controls for the RobertHalf.com application
Regularly review security and privacy policies and procedures, implementing changes when needed to enhance information security and privacy program
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(31 days from discovery to filing)
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 ↗

Indiana State AGJun 14 · first

Massachusetts State AGJun 14 · first

Maine State AGJun 14 · first

New Hampshire State AG+2d · 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/robert-half-international-20220616.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 16, 2022
Raw hash: 0beb8118d9152b9857b4754fec122046d15118d3365634e850c4123bcff86f4c

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityRobert Half International Inc.

Victim entityRobert Half International Inc.

Incidentdiscovered May 16, 2022

Stated responseReset user passwords

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov