HackingHealthcareFinancial ServicesHealthcareVulnerability ExploitData ExfiltratedSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDMediumContained

CALIFORNIA PHYSICIANS' SERVICE

bd_57de58eb876f18d7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 23, 2023

Filed

Nov 22, 2023

To disclose

13 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

65%

Full breach record for CALIFORNIA PHYSICIANS' SERVICE →26 incidents on file

Medical Eye Services (vendor) exploited MOVEit vulnerability on Aug 23, 2023, affecting Blue Shield of California (victim). Data exfiltrated May 28-31, 2023. Incident reported to FBI. Notifications mailed Nov 17, 2023 to NH residents. Data included names, SSNs, DOBs. Remediation: system rebuild, credit monitoring offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 87 days

discovery → filing · 13 weeks / 91 days

May 28, 2023

Begins

Aug 23, 2023

Discovered

Nov 22, 2023

Filed

vs. sector median

on median

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

HHS OCRbd_4f096d3a71532eca2023-11-17 · +5dVerified
California State AGbd_6beb8ba0bda9123f2023-11-17 · +5dVerified

Name: Medical Eye Services, Inc.
norm: medical eye
Domain: medeye.net

Name: CALIFORNIA PHYSICIANS' SERVICE
norm: california physicians service
Domain: blueshieldca.com
Also named: California Physicians’ Servicedba oflegal entity
Blue Shield of Californiadba oftrade name
Industry: HealthcarellmFinancial Servicesllm

Discovered: Aug 23, 2023
Breach occurred: May 28, 2023 – May 31, 2023
Undetected for: 87 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 17, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: reported the matter to the FBI
Initial access: exploit_public_facing

During the incident: Took the server offline
Launched an investigation into the incident
Engaged a cybersecurity firm
Reported the matter to the FBI
Rebuilt the MOVEit system in accordance with gold standard build requirements
Took a number of technical measures to validate security controls put in place
Offering complimentary credit monitoring and identity restoration services through Kroll
Changes made: Rebuilt the MOVEit system in accordance with gold standard build requirements
Took a number of technical measures to validate security controls put in place
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(91 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 2 states

View merged incident ↗

HHS OCRNov 17 · first

California State AGNov 17 · first

New Hampshire State AG+5d · this page

Pattern: first filing Nov 17 (CA), last Nov 22 (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://mm.nh.gov/files/uploads/doj/remote-docs/medical-eye-services-20231122.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 22, 2023
Raw hash: cdcb2428c0c08a8810865545144af1536f49387cb60a52e8771b6d5e41dd11f6

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMedical Eye Services, Inc.

Victim entityCALIFORNIA PHYSICIANS' SERVICE

Incidentdiscovered Aug 23, 2023

Stated responseTook the server offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov