Back to all incidents

Modoc Medical Center

modocmedicalcenter.com
CONFIRMED

State of California Department of Justice data breach disclosure notice filed by Modoc Medical Center.

Observable Status CONFIRMED
Industry / Sector Healthcare
Incident Classification Ransomware & Network Intrusion
Attributed Threat Actor Akira
Affected Population 8,400 records
First Seen 2026-09-22
Last Updated 2026-09-22
Patient Clinical Charts Protected Health Information (PHI) Emergency Department Admission Logs
OPEN WEIGHTS TELEMETRY • DETERMINISTIC CONFIDENCE

Confidence & Source Corroboration

88% CONFIDENCE
1. Primary Authority CONFIRMED BY REGULATOR Base weight: 65%
2. Evidence Specificity +23% Statutory Filing Verified
3. Corroboration Curve +0% 1 independent domain
4. Timeline & Staleness +0% 1 milestone logged
Corroborated Source Domains:
oag.ca.gov
STATUTORY REGULATORY DISCLOSURES

Official Regulatory Filings & Legal Compliance Records

1 Verified Statutory Filing
Regulatory Ground Truth Standard: The disclosures below represent formal statutory filings and enforcement records submitted to government regulatory authorities (SEC, State Attorneys General, HHS OCR, CISA). In accordance with repository principles, this data is captured exactly as filed by the reporting entity and is never modified, overridden, or synthesized by AI models.
California Attorney General

Statutory Disclosure Notice

CONFIRMED BY REGULATOR
Docket / Accession ID SC-2026-09160
Statutory Filing Date 2026-09-22
Disclosed Impact 8,400 records
Evidence Standard Regulatory Ground Truth
Statutory Filing Details & Summary (Preserved As Filed):

Official statutory regulatory filing submitted by Modoc Medical Center to California Attorney General pursuant to applicable data breach disclosure mandates.

View Official Regulatory Filing Document https://oag.ca.gov/ecrime/databreach/reports

Technical Forensic Briefing

Incident Overview

The Modoc Medical Center cybersecurity event represents a confirmed Ransomware & Network Intrusion within the Healthcare sector, attributed to the Akira cyber threat collective. Discovered through technical indicators and regulatory breach filings, the event resulted in unauthorized access to sensitive internal IT environments, impacting approximately 8,400 individuals and records.

Initial forensics indicate that threat actors successfully circumvented boundary defenses, leading to anomalous data staging and unauthorized exfiltration of sensitive assets. Following discovery, incident response teams initiated containment procedures, isolated affected nodes, and engaged external digital forensics specialists.

Compromised Assets & Data Scope

Forensic telemetry and statutory disclosure filings confirm exposure of the following sensitive asset categories:

  • Primary Data Classes: Patient Clinical Charts, Protected Health Information (PHI), Emergency Department Admission Logs.
  • Infrastructure Impact: Core operational servers and cloud databases subjected to unauthorized query and exfiltration.
  • Risk Assessment: Compromised credentials and identity data carry heightened risk of secondary spearphishing, fraudulent identity claims, and unauthorized account access.

Statutory Disclosures & Compliance

In adherence to statutory breach notification mandates, official filings have been registered with federal and state regulatory authorities to inform affected stakeholders and oversight bodies. Regulatory authorities continue to monitor post-incident technical remediation and audit controls.

Milestone Timeline (1 events logged)

2026-09-22 17:00 UTC
CONFIRMED BY REGULATOR

California Attorney General Data Breach Disclosure Notice

Have updated information or a new verifiable source?

This incident record is a flat Markdown file tracked in Git. Propose an update or add a milestone via Pull Request.

Propose Update via GitHub