Disclosure context

About hive

Hive is a financially motivated ransomware group that emerged in August 2021, operating as a Ransomware-as-a-Service (RaaS) model to maximize their criminal enterprise's reach and profitability. The group is suspected to have origins in Eastern Europe based on their operational patterns and linguistic indicators, though definitive attribution remains unclear, and they operate independently while recruiting affiliates to conduct attacks on their behalf. Hive primarily gains initial access through compromised Remote Desktop Protocol (RDP) credentials, phishing campaigns, and exploitation of known vulnerabilities in public-facing applications, subsequently deploying their custom ransomware payload that uses a combination of RSA and AES encryption algorithms while simultaneously exfiltrating sensitive data before encryption to enable double extortion tactics where they threaten to publish stolen information if ransom demands are not met. The group has targeted over 208 victims globally with a particular focus on manufacturing companies, business services, information technology firms, healthcare services, and internet and telecommunication services, primarily in the United States, United Kingdom, Netherlands, Indonesia, and China, including notable attacks against healthcare systems and critical infrastructure that drew significant attention from law enforcement agencies. In January 2023, the FBI announced the successful disruption of Hive's operations, seizing their dark web leak sites and decryption keys, effectively dismantling the group's infrastructure and providing free decryption tools to victims. The group has been linked to 208 public disclosures across our corpus. First observed on a leak site on August 14, 2021; most recent post January 16, 2023. The operation is currently inactive.

Timeline of this disclosure

December 22, 2022MHMR Authority Of Brazos Valley listed by hiveon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, MHMR Authority Of Brazos Valley is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

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MHMR Authority Of Brazos Valley

Claimed by hive · listed 3 years ago

41m

Age

since listed · data leaked

Status timeline

Listed
Dec 22, 2022
Data leaked

At a glance

Group: hive
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Dec 22, 2022

About the victim

AI dossier — public-source company profile

MHMR Authority of Brazos Valley is a public non-profit 501(c)(3) community behavioral health center based in Bryan, Texas, serving a seven-county area. Each year it provides mental health and intellectual & developmental disability (IDD) services to over 7,200 children and adults. It is a certified Community Behavioral Health Clinic operating under the Texas Department of State Health Services and Texas Health and Human Services.

Industry: Community Mental Health & Intellectual Disability Services
Address: P.O. Box 4588, Bryan, TX 77805; Crisis Triage & Diversion Center: 1906 South College Avenue, Bryan, Texas 77801

Attack summary

Severity: critical — The victim is a community mental health and IDD services provider handling highly sensitive regulated data (mental health records, disability records, PII) for over 7,200 vulnerable individuals; disclosure status is data_published, confirming exfiltration and release of this protected health information at scale.

The Hive ransomware group claims to have attacked MHMR Authority of Brazos Valley, with the disclosure status recorded as data_published, indicating exfiltration and likely publication of stolen data. The leak post references the organization's role as a public non-profit community MHMR center, suggesting sensitive client and operational records are at risk.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Patient/client mental health records
Intellectual & developmental disability service records
Personal identifying information (PII) of clients
Staff and administrative records
Financial and grant documentation

What the group claims

The MHMR Authority of Brazos Valley is a public non-profit community MHMR center. Through the Texas Department of State Health Services and Texas Department of

Sources

Victim sitemhmrabv.org

Source

Indexed 3 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.