HackingHealthcareHealthcareData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)Financial accountHighContained

Greater Cincinnati Behavioral Health

bd_94597d00252f3111 · schema v1 · pii pii-v1

Severity

High

Discovered

Dec 10, 2023

Filed

Jun 13, 2024

To disclose

27 weeks

Affected · nationwide

60,0802 in this filing

Linked

6 filings

Confidence

66%

Full breach record for Greater Cincinnati Behavioral Health →

Greater Cincinnati Behavioral Health Services (GCBHS) experienced an external system breach (hacking) on Dec 9-10, 2023, discovered Dec 10, 2023. Unauthorized access affected 60,080 individuals, including 2 Maine residents. Compromised data included names, SSNs, medical info, and health insurance data. GCBHS engaged forensic investigators, reset credentials, and offered 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Dec 10, 2023 → Filed with AG Jun 13, 2024186d ✗ ME AG >90d27 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 1 days

discovery → filing · 27 weeks / 186 days

Dec 9, 2023

Begins

Dec 10, 2023

Discovered

Jun 13, 2024

Filed

vs. sector median

+14 wks slower

This filing is one of 6 about the same incident.View merged incident

A leak claim by dragonforce about this victim predates this filing by 183 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitedragonforcebd_41132c496638b1b92023-12-13 · +183dVerified

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_fadf7304fea6e46e2024-06-13Verified by operator
Maine State AGbd_af604ff30818615e2024-09-11 · +90dVerified by operator
HHS OCRbd_a0db490ef29f1fdb2024-02-02 · +132dVerified
Indiana State AGbd_f65e62cc431b5ba12024-01-25 · +140dVerified

Name: Wilson, Elser, Moskowitz, Edelman & Dicker LLP
norm: wilson elser moskowitz edelman dicker
Domain: wilsonelser.com

Name: Greater Cincinnati Behavioral Health
norm: greater cincinnati behavioral health
Domain: gcbhs.com
Industry: Healthcarellm

Discovered: Dec 10, 2023
Breach occurred: Dec 9, 2023 – Dec 10, 2023
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Jun 12, 2024
Affected individuals: 60,080state + nationwide
Data types: Identity (basic)Government IDHealth (basic)Financial account
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified Maine Attorney General
Initial access: exploit_public_facing

During the incident: Disconnected all access to the network
Engaged a specialized third-party cybersecurity firm and IT personnel to assist with securing the environment
Conducted a comprehensive forensic investigation
Implemented an organization-wide credential reset of all users
Adding additional security tools
Offered 12 months of complimentary credit monitoring and identity theft restoration services through Cyberscout
Changes made: Implementing an organization-wide credential reset of all users
Adding additional security tools
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 weeks(186 days from discovery to filing)
Compliance flags: ME AG >90d · 186dME resident >180d · 185dLeak >180d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Dec 10, 2023
→ Filed with AG: Jun 13, 2024
186d 90 days ME AG >90d
Maine
Discovered: Dec 10, 2023
→ Notified: Jun 12, 2024
185d 180 days ME resident >180d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 10, 2023 → Filed with AG: Jun 13, 2024	186d	90 days	ME AG >90d
Maine	Discovered: Dec 10, 2023 → Notified: Jun 12, 2024	185d	180 days	ME resident >180d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 4 states

View merged incident ↗

Indiana State AGJan 25 · first

HHS OCR+8d

Massachusetts State AG+140d

Maine State AG+140d · this page

Maine State AG+230d

Pattern: first filing Jan 25 (IN), last Sep 11 (ME) — a 230-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/99b19a62-5dc2-4036-a1ad-0bcc9cdb8565.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 13, 2024
Raw hash: 45778fe687d64a4be0110dae4db93dbd75e6d32982a51eded6d9a12e0d3febed

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityWilson, Elser, Moskowitz, Edelman & Dicker LLP

Victim entityGreater Cincinnati Behavioral Health

Incidentdiscovered Dec 10, 2023

Stated responseDisconnected all access to the network

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov