HackingHealthcareFinancial ServicesHealthcareStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)Health (basic)MediumContained

Prominence Health Plan

bd_9c223d1e0ebe27ee · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 22, 2021

Filed

Jun 18, 2021

To disclose

8 weeks

Affected · nationwide

45,00014 in this filing

Linked

7 filings

Confidence

66%

Full breach record for Prominence Health Plan →2 incidents on file

Prominence Health Plan notified ~45,000 members of a security incident where a third party gained unauthorized access to its data system in November 2020. Accessed data included call recordings and claim forms containing names, DOBs, member IDs, and addresses. No SSNs or financial info were involved. Prominence reset credentials, engaged forensics, reported to the FBI, and offered 1 year of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 172 days

discovery → filing · 8 weeks / 57 days

Nov 1, 2020

Begins

Apr 22, 2021

Discovered

Jun 18, 2021

Filed

vs. sector median

3 wks faster

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

HHS OCRbd_4c56e78d6f3a77502021-06-18Verified
California State AGbd_90ba934885c520402021-06-18Verified
Maine State AGbd_da30b44faac0a8092021-06-18Verified
Massachusetts State AGbd_fe670afeaf3c14262021-06-18Verified

Show 2 more filings ↓up to 168d gap

Indiana State AGbd_66cd2925d686ce772021-06-21 · +3dVerified
Illinois State AGbd_a1bb365e226cb91a2021-01-01 · +168dCandidate

Name: Prominence Health Plan
norm: prominence health plan

Name: Prominence Health Plan
norm: prominence health plan
Industry: HealthcarellmFinancial Servicesllm

Discovered: Apr 22, 2021
Breach occurred: Nov 1, 2020
Undetected for: 172 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 21, 2021
Affected individuals: 45,000state + nationwide
Data types: PIIIdentity (basic)Health (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: reported the incident to the FBIreported the incident to federal and state regulators
Initial access: valid_credentials

During the incident: Changed the credentials used to access its system
Secure the impacted environment
Conduct an investigation of what happened
Restore the impacted data from backups
Reported the incident to the FBI as well as to federal and state regulators
Offering a complimentary one-year membership of Experian’s IdentityWorks
Changes made: Implementing additional security measures to enhance the continued security of information in its care
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(57 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

Illinois State AGJan 1 · first

HHS OCR+168d

California State AG+168d

Maine State AG+168d

Massachusetts State AG+168d

Montana State AG+168d · this page

Indiana State AG+171d

Pattern: first filing Jan 1 (IL), last Jun 21 (IN) — a 171-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://dojmt.gov/wp-content/uploads/promSamp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 18, 2021
Raw hash: 8868e4df6db889d0514ee49efa44f81feb7ee4eeb93fd9ad62a16b82329ed049

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityProminence Health Plan

Victim entityProminence Health Plan

Incidentdiscovered Apr 22, 2021

Stated responseChanged the credentials used to access its system

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov