MalwareHealthcareHealthcareRansomwareStolen CredentialsData ExfiltratedTargetedIdentity (basic)Government IDFinancial accountPHIHealth (basic)MediumContained

Richmond Behavioral Health Authority

bd_3fce0541fd942e3c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 30, 2025

Filed

Dec 9, 2025

To disclose

10 weeks

Affected

3state residents only

Linked

7 filings

Confidence

66%

Full breach record for Richmond Behavioral Health Authority →

Richmond Behavioral Health Authority notified Montana residents of a ransomware incident discovered on September 30, 2025. Malicious actors accessed the network on September 29, 2025, deploying ransomware. Potential exposure includes names, SSNs, passport numbers, financial account info, and health information. Access was terminated; investigation ongoing. Kroll identity monitoring offered.

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Incident timeline

undetected · 1 days

discovery → filing · 10 weeks / 70 days

Sep 29, 2025

Begins

Sep 30, 2025

Discovered

Dec 9, 2025

Filed

vs. sector median

1 wks faster

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

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteqilinbd_625880881e1f603a2025-10-15 · +55dVerified

Regulatory filings (5) · sorted by filing gap

Nebraska State AGbd_202c1c93b75f1b8c2025-12-04 · +5dVerified
Indiana State AGbd_e98cc50507d663142025-12-04 · +5dVerified
New Hampshire State AGbd_38e8c8a165ef20122025-12-16 · +7dVerified
Massachusetts State AGbd_3f57bc47435431fe2025-12-17 · +8dVerified by operator

Show 1 more filing ↓up to 11d gap

HHS OCRbd_eb9b4c55106ef3362025-11-28 · +11dVerified

Name: Richmond Behavioral Health Authority
norm: richmond behavioral health authority
Domain: rbha.org

Name: Richmond Behavioral Health Authority
norm: richmond behavioral health authority
Domain: rbha.org
Industry: Healthcarellm

Discovered: Sep 30, 2025
Breach occurred: Sep 29, 2025
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government IDFinancial accountPHIHealth (basic)
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: RBHA’s management, IT and third-party cybersecurity experts were engaged to investigate the incident
Secure personal information and protect RBHA’s network from compromise
Information technology experts were immediately engaged and commenced an investigation
Engaged a leading strategic service provider to monitor our cybersecurity systems
Reviewed our system’s architecture
Implemented stronger policies to prevent future attacks
Secured the services of Kroll to provide identity monitoring at no cost
Changes made: Implemented additional security measures designed to further protect the privacy of our students, staff and partners
Implemented stronger policies to prevent future attacks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(70 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

HHS OCRNov 28 · first

Nebraska State AG+6d

Indiana State AG+6d

Montana State AG+11d · this page

New Hampshire State AG+18d

Massachusetts State AG+19d

Pattern: first filing Nov 28 (VA), last Dec 17 (MA) — a 19-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/2026/01/Consumer-notification-letter-30.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 9, 2025
Raw hash: 36ff514b8743bc0fd22dec50bb6069122c2da83900f62919e198cab020663481

Linked disclosures

Ransomware claims (1)

Regulatory filings (5) · sorted by filing gap

Reporting entityRichmond Behavioral Health Authority

Victim entityRichmond Behavioral Health Authority

Incidentdiscovered Sep 30, 2025

Stated responseRBHA’s management, IT and third-party cybersecurity experts were engaged to investigate the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov