HackingHealthcareGovernmentHealthcareSupply Chain (3P Vendor)Business Associate (HIPAA)Customer Data InvolvedData ExfiltratedPHIGovernment IDIdentity (basic)Health (basic)MediumContained

County of Santa Barbara Health Department

bd_e62559ada7199ea0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 9, 2025

Filed

Jan 12, 2026

To disclose

5 weeks

Affected

Not disclosed

Confidence

65%

Full breach record for County of Santa Barbara Health Department →

The County of Santa Barbara Health Department notified patients of a data breach involving Protected Health Information (PHI) due to a cybersecurity incident at TriZetto Provider Solutions, a business associate of their EHR vendor OCHIN. The incident occurred between November 2024 and October 2025, with discovery on December 9, 2025. Affected data includes names, dates of birth, Social Security Numbers, addresses, phone numbers, and health coverage information. The department is offering credit monitoring services through Kroll.

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Incident timeline

undetected · 403 days

discovery → filing · 5 weeks / 34 days

Nov 1, 2024

Begins

Dec 9, 2025

Discovered

Jan 12, 2026

Filed

vs. sector median

7 wks faster

Part of TriZetto Provider Solutions supply-chain incident (2025) — 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.ConfirmedView incident

Name: County of Santa Barbara Health Department
norm: county of santa barbara health department

Name: County of Santa Barbara Health Department
norm: county of santa barbara health department
Industry: HealthcarellmGovernmentllm

Discovered: Dec 9, 2025
Breach occurred: Nov 1, 2024 – Oct 2, 2025
Undetected for: 403 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PHIGovernment IDIdentity (basic)Health (basic)
Data elements: Social Security numberDate of birth
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Third party: via TriZetto Provider SolutionsBusiness Associate of Vendor
Initial access: supply_chain

During the incident: Assessing the level of impact on our patients due to the cybersecurity incident
Working with vendor OCHIN, Inc. on handling the security incident and its resolution
Providing a list of free services, including credit monitoring and resources available to individuals impacted by the cybersecurity incident
Changes made: Offering Single Bureau Credit Monitoring, Single Bureau Credit Report, and Single Bureau Credit Score services at no charge through Kroll
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(34 days from discovery to filing)
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://oag.ca.gov/ecrime/databreach/reports/sb24-616940
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 12, 2026
Raw hash: 893812178ed8432dbbdb21f294301b268839366c9227024426432070669f22e9

Reporting entityCounty of Santa Barbara Health Department

Victim entityCounty of Santa Barbara Health Department

Incidentdiscovered Dec 9, 2025

Stated responseAssessing the level of impact on our patients due to the cybersecurity incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov