HackingFinancial ServicesFinanceStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedIdentity (basic)LowContained

Workers' Compensation Insurance Rating Bureau of California

bd_c89bebb7fc860ae6 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jul 9, 2025

Filed

Oct 27, 2025

To disclose

16 weeks

Affected

Not disclosed

Linked

9 filings

Confidence

64%

Full breach record for Workers' Compensation Insurance Rating Bureau of California →

Workers’ Compensation Insurance Rating Bureau of California notified consumers of a data breach involving its third-party cloud storage provider, Box.com. An unauthorized third party accessed the system between July 9, 2025, and September 18, 2025, potentially obtaining names. The company engaged forensic investigators, secured the environment, and offered identity theft protection services to affected individuals.

J jump to incidentP pin to compareR raw source

Vermont clock✗ VT AG >45 bday16 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

discovery → filing · 16 weeks / 110 days

Jul 9, 2025

Discovered

Oct 27, 2025

Filed

vs. sector median

+7 wks slower

This filing is one of 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

Indiana State AGbd_137c95f7177196c32025-10-27Verified
Massachusetts State AGbd_35b6d39f25bdf4942025-10-27Verified
Maine State AGbd_499f1565cccef01a2025-10-27Candidate
New Hampshire State AGbd_cec940e56ca4e1c42025-10-27Verified

Show 4 more filings ↓up to 117d gap

Nebraska State AGbd_f902bf746cb1d0c62025-10-27Verified
California State AGbd_5f2e5ff2174ab56b2025-10-13 · +14dVerified
California State AGbd_1c5afd8ba3a6c1482025-12-10 · +44dVerified
California State AGbd_aa3c86a48d1f43682026-02-21 · +117dVerified

Name: Workers' Compensation Insurance Rating Bureau of California
norm: workers compensation insurance rating bureau of california

Name: Workers' Compensation Insurance Rating Bureau of California
norm: workers compensation insurance rating bureau of california
Industry: Financial Servicesllm

Discovered: Jul 9, 2025
Materiality determined: —
Notification sent: Oct 27, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Initial access: external_remote_services

During the incident: Engaged third-party forensic specialists to confirm the security of our Box.com environment and investigate the extent of any unauthorized activity
Offering identity theft protection services through IDX
Taking steps to bolster security
Reviewing and altering policies and procedures
Changes made: Bolstered security
Reviewed and altered policies and procedures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 weeks(110 days from discovery to filing)
Compliance flags: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 7 states

View merged incident ↗

California State AGOct 13 · first

Indiana State AG+14d

Massachusetts State AG+14d

Maine State AG+14d

New Hampshire State AG+14d

Nebraska State AG+14d

Vermont State AG+14d · this page

California State AG+58d

California State AG+131d

Pattern: first filing Oct 13 (CA), last Feb 21 (CA) — a 131-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://ago.vermont.gov/document/2025-10-27-workers-compensation-insurance-rating-bureau-ca-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 27, 2025
Raw hash: 1bc8547a67c1252d9c743b84447ad3dccec4bff86a50b7b6de9cbbcf372563cd

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityWorkers' Compensation Insurance Rating Bureau of California

Victim entityWorkers' Compensation Insurance Rating Bureau of California

Incidentdiscovered Jul 9, 2025

Stated responseEngaged third-party forensic specialists to confirm the security of our Box.com environment and investigate the extent of any unauthorized activity

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov