MalwareHealthcareFinancial ServicesHealthcareRansomwareRansom DemandedSupply Chain (3P Vendor)Business Associate (HIPAA)Customer Data InvolvedData EncryptedPHIHealth (basic)Identity (basic)LowContained

Blue Shield of California

bd_132d739c02f681ca · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Jul 12, 2022

To disclose

—

Affected

Not disclosed

Linked

2 filings

Confidence

84%

Blue Shield of California notified members of a ransomware attack on OneTouchPoint (OTP), a subcontractor of vendor Matrix Medical Network. OTP detected suspicious network activity on April 28, 2022; Blue Shield learned of the incident on May 20, 2022. Affected members' PHI may have included names, subscriber IDs, diagnoses, medications, addresses, and other health data. No SSNs, driver's licenses, or financial data were accessed. One year of Experian IdentityWorks was offered.

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Incident timeline

Apr 28, 2022

Begins

Jul 12, 2022

Filed

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_a4b57386ab8317482022-07-12Verified

Name: Blue Shield of California
norm: blue shield of california
Domain: blueshieldca.com

Name: Blue Shield of California
norm: blue shield of california
Domain: blueshieldca.com
Industry: HealthcarellmFinancial Servicesllm

Discovered: —
Breach occurred: Apr 28, 2022
Materiality determined: —
Notification sent: Jul 11, 2022
Affected individuals: Not disclosed
Data types: PHIHealth (basic)Identity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Initial access: supply_chain

During the incident: OTP immediately terminated the unauthorized access
OTP began an investigation into the matter
OTP took mitigation actions
Blue Shield is offering complimentary access to Experian IdentityWorks for one year
Changes made: OTP is evaluating the need for additional steps and will continue to make security improvements
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

HHS OCRJul 12 · first

California State AGJul 12 · 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/sb24-555178
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 12, 2022
Raw hash: caac33feab8016d0edce5a3d1fd3b7024100a6d974f0018f4fe40b190a0bbd91

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityBlue Shield of California

Victim entityBlue Shield of California

IncidentRansomware

Stated responseOTP immediately terminated the unauthorized access

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov