HackingHealthcareFinancial ServicesHealthcareStolen CredentialsCustomer Data InvolvedDelayed DiscoveryPHIIdentity (basic)Government IDHealth (basic)MediumContained

Health Plan of San Joaquin (HPSJ)

bd_eb22886cfd085088 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 12, 2020

Filed

May 18, 2021

To disclose

31 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

65%

Full breach record for Health Plan of San Joaquin (HPSJ) →2 incidents on file

Health Plan of San Joaquin (HPSJ) notified the California Attorney General that an unknown person accessed certain employee email accounts between September 26, 2020, and October 12, 2020. HPSJ learned of unusual activity on October 12, 2020. Affected individuals' information may have included names, member IDs, Social Security numbers, dates of birth, health insurance information, medical IDs, medical record numbers, prescription information, and treatment information. HPSJ changed passwords, investigated the incident, and offered 12 months of free identity monitoring through Equifax.

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California clockDiscovered Oct 12, 2020 → Notified May 18, 2021218d ✗ CA 60-day late31 weeks discovery → filing

Incident timeline

undetected · 16 days

discovery → filing · 31 weeks / 218 days

Sep 26, 2020

Begins

Oct 12, 2020

Discovered

May 18, 2021

Filed

vs. sector median

+19 wks slower

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_557b508e20ebb6cb2021-05-18Candidate
Maine State AGbd_90d3d799540bee882021-05-18Verified

Name: Health Plan of San Joaquin (HPSJ)
norm: health plan of san joaquin hpsj

Name: Health Plan of San Joaquin (HPSJ)
norm: health plan of san joaquin hpsj
Industry: HealthcarellmFinancial Servicesllm

Discovered: Oct 12, 2020
Breach occurred: Sep 26, 2020 – Oct 12, 2020
Undetected for: 16 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 18, 2021
Affected individuals: Not disclosed
Data types: PHIIdentity (basic)Government IDHealth (basic)
Data elements: Date of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Launched an investigation
Brought in a computer specialist that has expertise in email security incidents
Changed the passwords for those email accounts
Reviewed the messages in the email accounts to determine if any personal information was in the affected HPSJ email accounts
Offering free identity monitoring services for 12 months through Equifax
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 31 weeks(218 days from discovery to filing)
Compliance flags: CA 60-day late · 218d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Oct 12, 2020
→ Notified: May 18, 2021
218d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Oct 12, 2020 → Notified: May 18, 2021	218d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Montana State AGMay 18 · first

Maine State AGMay 18 · first

California State AGMay 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://oag.ca.gov/ecrime/databreach/reports/sb24-541021
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 18, 2021
Raw hash: 744b0681c1583518c08f9bd0ae7559f0509df4f4a222d05a13bc5220a7988333

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityHealth Plan of San Joaquin (HPSJ)

Victim entityHealth Plan of San Joaquin (HPSJ)

Incidentdiscovered Oct 12, 2020

Stated responseLaunched an investigation

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov