HackingHealthcareHealthcareStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)PHIMediumContained

Meridian Behavioral Healthcare

bd_09023d66da863c09 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 11, 2023

Filed

Dec 22, 2023

To disclose

19 weeks

Affected

10state residents only

Linked

4 filings

Confidence

67%

Full breach record for Meridian Behavioral Healthcare →

Meridian Behavioral Healthcare, Inc. notified Montana residents of unauthorized access to computer systems discovered on August 11, 2023. The incident potentially exposed personal health information, including names, addresses, SSNs, dates of birth, and medical diagnoses. Meridian secured its network, reset passwords, and engaged forensic investigators. No evidence of misuse was found, but credit monitoring services were offered.

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Incident timeline

discovery → filing · 19 weeks / 133 days

Aug 11, 2023

Discovered

Dec 22, 2023

Filed

vs. sector median

+6 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_00960676084cc3162023-12-22Verified
HHS OCRbd_1a9ca18e03a5c9042023-12-22Verified
New Hampshire State AGbd_dc7c9d7a4c2771df2023-12-22Verified

Name: Meridian Behavioral Healthcare
norm: meridian behavioral healthcare

Name: Meridian Behavioral Healthcare
norm: meridian behavioral healthcare
Industry: Healthcarellm

Discovered: Aug 11, 2023
Materiality determined: —
Notification sent: —
Affected individuals: 10state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PHI
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Secured its network
Reset passwords
Engaged a third-party team of forensic investigators
Changes made: Took steps to enhance the security of all information
Arranged for you to enroll, at no cost to you, in identity theft protection services through Identity Defense for credit monitoring and fully managed identity theft recovery services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 19 weeks(133 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Massachusetts State AGDec 22 · first

HHS OCRDec 22 · first

New Hampshire State AGDec 22 · first

Montana State AGDec 22 · 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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-978.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 22, 2023
Raw hash: 671e7b54224a060b2b00b4063eb3dd090881d1fc0a94793fea0fb40bdbc29dc0

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMeridian Behavioral Healthcare

Victim entityMeridian Behavioral Healthcare

Incidentdiscovered Aug 11, 2023

Stated responseSecured its network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov