HackingHealthcareHealthcareData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

MHMR Authority of Brazos Valley

bd_866ef8fd9da653d7 · schema v1 · pii pii-v1

Severity

High

Discovered

May 30, 2023

Filed

Aug 1, 2023

To disclose

9 weeks

Affected · nationwide

83,2458 in this filing

Linked

7 filings

Confidence

66%

Full breach record for MHMR Authority of Brazos Valley →

MHMR Authority of Brazos Valley, a healthcare entity based in Bryan, Texas, reported an external system breach (hacking) occurring on November 5, 2022, discovered on May 30, 2023. The incident compromised the personal information of 83,245 individuals, including 8 Maine residents. Acquired data included names combined with driver's license numbers. The entity provided written notification and offered 12 months of credit/dark web monitoring and identity protection insurance.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d9 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 206 days

discovery → filing · 9 weeks / 63 days

Nov 5, 2022

Begins

May 30, 2023

Discovered

Aug 1, 2023

Filed

vs. sector median

4 wks faster

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

A leak claim by hive about this victim predates this filing by 222 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitehivebd_6445d4c7067f42fe2022-12-22 · +222dVerified by operator

Regulatory filings (5) · sorted by filing gap

Massachusetts State AGbd_f4bd3ec2e60be6502023-08-01Verified
Indiana State AGbd_872d53b345374dec2023-07-28 · +4dCandidate
Montana State AGbd_8fd70e87ceed898b2023-07-28 · +4dVerified
Vermont State AGbd_90ead781bcdc39a12023-07-28 · +4dVerified

Show 1 more filing ↓up to 154d gap

HHS OCRbd_a7fe7a90c1c53edc2023-02-28 · +154dVerified

Name: MHMR Authority of Brazos Valley
norm: mhmr authority of brazos valley
Domain: mhmrabv.org
Industry: Healthcare

Name: MHMR Authority of Brazos Valley
norm: mhmr authority of brazos valley
Domain: mhmrabv.org
Industry: Healthcare
Industry: Healthcarellm

Discovered: May 30, 2023
Breach occurred: Nov 5, 2022
Undetected for: 206 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 28, 2023
Affected individuals: 83,245state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Driver's licence number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered 12 months of credit and dark web monitoring through IDX
Provided $1M identity protection insurance policy
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(63 days from discovery to filing)
Compliance flags: Leak >180dME AG >30d · 63d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: May 30, 2023
→ Filed with AG: Aug 1, 2023
63d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 30, 2023 → Filed with AG: Aug 1, 2023	63d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

HHS OCRFeb 28 · first

Indiana State AG+150d

Montana State AG+150d

Vermont State AG+150d

Massachusetts State AG+154d

Maine State AG+154d · this page

Pattern: first filing Feb 28 (TX), last Aug 1 (ME) — a 154-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/c0f635df-e240-41f1-b726-ca1e7ab42afa.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 1, 2023
Raw hash: ba444b93e29d44e864b92831c69922246566a488ba1a5f2d1641a8a6ab447b70

Linked disclosures

Ransomware claims (1)

Regulatory filings (5) · sorted by filing gap

Reporting entityMHMR Authority of Brazos Valley

Victim entityMHMR Authority of Brazos Valley

Incidentdiscovered May 30, 2023

Stated responseSent written notification to affected individuals

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov