MalwareHealthcareFinancial ServicesHealthcareRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedEmployee Data InvolvedAuthenticationCredentialsFinancial accountHealth (basic)Identity (basic)Government IDPHIHighActive

Partnership HealthPlan of California

bd_13479c21b6c7bb13 · schema v1 · pii pii-v1

Severity

High

Discovered

Mar 19, 2022

Filed

May 18, 2022

To disclose

9 weeks

Affected

1,352state residents only

Linked

9 filings

Confidence

71%

Full breach record for Partnership HealthPlan of California →

Partnership HealthPlan of California (PHC) disclosed a ransomware incident on March 19, 2022, affecting 1,352 Washington residents. Unauthorized access resulted in the potential exposure of PHI, SSNs, driver's licenses, and financial data. PHC engaged cybersecurity specialists, notified law enforcement, and offered two years of credit monitoring.

J jump to incidentP pin to compareR raw source

Washington clock⏱ WA AG >30d9 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 9 weeks / 60 days

Mar 19, 2022

Begins

Mar 19, 2022

Discovered

May 18, 2022

Filed

vs. sector median

4 wks faster

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_09ac846e3353b7c22022-05-18Verified
California State AGbd_139be031dd01e4732022-05-18Verified
Oregon State AGbd_33fa1e5cbdfe4d562022-05-18Verified
Montana State AGbd_485a1f1fad2f5f502022-05-18Verified

Show 4 more filings ↓up to 5d gap

Maine State AGbd_d7601862e566c6772022-05-18Verified
Massachusetts State AGbd_e505a839d03f001c2022-05-18Verified
HHS OCRbd_ee64421b22fda0a42022-05-18Verified
New Hampshire State AGbd_1372a343ab4814322022-05-23 · +5dVerified

Name: Partnership HealthPlan of California
norm: partnership healthplan of california
Domain: partnershiphp.org

Name: Partnership HealthPlan of California
norm: partnership healthplan of california
Domain: partnershiphp.org
Industry: HealthcarellmFinancial Servicesllm

Discovered: Mar 19, 2022
Breach occurred: Mar 19, 2022
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 18, 2022
Affected individuals: 1,352state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Financial accountCredentials
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthUnique private keyHealth insurance IDMedical informationUsername + password
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 0dexposure 0d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified federal law enforcement (reference number I2203221559516532)Notifying the U.S. Department of Health and Human ServicesProviding written notice to relevant state regulators
Initial access: valid_credentials

During the incident: Began an investigation with the assistance of cybersecurity specialists
Promptly notified federal law enforcement
Providing impacted individuals with access to credit monitoring services for two (2) years through Cyberscout
Notifying the U.S. Department of Health and Human Services and prominent media pursuant to the Health Insurance Portability and Accountability Act (HIPAA)
Providing written notice of this incident to relevant state regulators
Notifying the three major credit reporting agencies, Equifax, Experian, and TransUnion
Changes made: Reviewing and enhancing its existing policies and procedures relating to data protection and security
Implementing additional security measures and safeguards to protect against this type of event in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(60 days from discovery to filing)
Compliance flags: WA AG >30d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 8 states

View merged incident ↗

Indiana State AGMay 18 · first

California State AGMay 18 · first

Oregon State AGMay 18 · first

Montana State AGMay 18 · first

Maine State AGMay 18 · first

Massachusetts State AGMay 18 · first

HHS OCRMay 18 · first

Washington State AGMay 18 · first · this page

New Hampshire State AG+5d

Pattern: first filing May 18 (IN), last May 23 (NH) — a 5-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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA10083.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 18, 2022
Raw hash: c9257246dbf52d679a6b322e0eb6b2be7969f7d45f3ee94a7d6dcd482561bced

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityPartnership HealthPlan of California

Victim entityPartnership HealthPlan of California

Incidentdiscovered Mar 19, 2022

Stated responseBegan an investigation with the assistance of cybersecurity specialists

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com