HackingHealthcareTechnologyHealthcareStolen CredentialsSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDHealth (basic)MediumContained

Independent Care Health Plan

bd_14670278bf21d713 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 15, 2022

Filed

Aug 12, 2022

To disclose

28 days

Affected

1state residents only

Confidence

64%

Full breach record for Independent Care Health Plan →

Independent Care Health Plan (iCare) notified Montana residents of a data breach involving its vendor, Onyx Technology, LLC. Unauthorized access to Onyx's systems occurred between March 29 and June 28, 2022. The breach exposed PHI and PII, including names, DOBs, Medicare IDs, and member IDs. iCare engaged forensic investigators and offered 24 months of credit monitoring via Experian.

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Incident timeline

undetected · 108 days

discovery → filing · 28 days

Mar 29, 2022

Begins

Jul 15, 2022

Discovered

Aug 12, 2022

Filed

vs. sector median

9 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: ONYX TECHNOLOGY LLC
norm: onyx technology

Name: Independent Care Health Plan
norm: independent care health plan
Industry: HealthcarellmTechnologyllm

Discovered: Jul 15, 2022
Breach occurred: Mar 29, 2022 – Jun 28, 2022
Undetected for: 108 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 12, 2022
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDHealth (basic)
Data elements: Date of birth
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1078 Valid Accounts
Threat actor: External
Third party: via Onyx Technology, LLC
Initial access: supply_chain

During the incident: Hired a security firm to investigate
Regained access to its systems
Offering complimentary 24-month membership of Experian’s IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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://dojmt.gov/wp-content/uploads/OCP/Consumer-Notification-Letter-490.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 12, 2022
Raw hash: 8882e579937d5651d61fff9e62a115668396b11759753fc34161adef945296d5

Reporting entityONYX TECHNOLOGY LLC

Victim entityIndependent Care Health Plan

Incidentdiscovered Jul 15, 2022

Stated responseHired a security firm to investigate

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov