Disclosure context

About Daixin

Daixin is a ransomware group that emerged in August 2022, operating with primarily financial motivations and demonstrating a particular focus on critical infrastructure sectors. The group's origin and specific affiliations remain unclear from publicly documented sources, though their targeting patterns suggest sophisticated operational capabilities and potential access to healthcare sector vulnerabilities. Daixin employs typical ransomware attack methodologies including data exfiltration prior to encryption, implementing double extortion tactics to pressure victims into payment by threatening to release stolen sensitive information alongside system encryption. The group has demonstrated a pronounced targeting preference for healthcare organizations, which represents a significant portion of their documented victims, alongside government entities and financial services organizations. Their geographic focus centers heavily on the United States while also targeting victims across Indonesia, the United Arab Emirates, Germany, and Canada, indicating either broad operational reach or collaboration with regional affiliates. With 21 documented victims since their emergence, Daixin represents a relatively newer but active threat actor in the ransomware landscape. Current intelligence suggests the group remains operationally active as of recent assessments, continuing to pose threats to critical infrastructure sectors, particularly healthcare organizations that may be viewed as high-value targets due to the sensitive nature of their data and operational dependencies. The group has been linked to 21 public disclosures across our corpus. First observed on a leak site on August 3, 2022; most recent post September 11, 2025. The operation is currently inactive.

Timeline of this disclosure

November 28, 2023North Texas Municipal Water District listed by Daixinon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Government sector, which has 509 disclosures indexed across all operators we track. Geographically, North Texas Municipal Water District 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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North Texas Municipal Water District

Claimed by Daixin · listed 2 years ago

30m

Age

since listed · data leaked

Status timeline

Listed
Nov 28, 2023
Data leaked

At a glance

Group: Daixin
Status: Data leaked
Country: United States
Sector: Government
Listed on leak site: Nov 28, 2023

About the victim

AI dossier — public-source company profile

North Texas Municipal Water District (NTMWD) is a regional governmental agency headquartered in Wylie, Texas, that provides wholesale water, wastewater treatment, and solid waste management services. It serves a member and customer base covering more than two million residents across multiple cities and municipalities in the North Texas region. As a wholesale utility, it operates large-scale water treatment and distribution infrastructure on behalf of its member cities.

Industry: Municipal Water & Wastewater Utility
Address: 505 E. Brown Street, Wylie, Texas 75098, United States
Employees: 201-500
Founded: 1951

Attack summary

Severity: critical — NTMWD is critical water infrastructure serving over two million people; a confirmed data publication by Daixin against a public utility responsible for water and wastewater services represents exfiltration of potentially sensitive operational, employee PII, and infrastructure data from a critical-infrastructure government entity, meeting the critical threshold.

The Daixin ransomware group claims to have exfiltrated data from NTMWD and has published the data; the post references the district's role serving over two million people, suggesting operational and sensitive administrative records may be at stake.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Internal administrative records
Employee personally identifiable information
Operational infrastructure data
Customer/member municipality records
Financial and procurement documents

What the group claims

The North Texas Municipal Water District (NTMWD) provides vital wholesale water, wastewater and solid waste management services to more than two million people who call North Texas their home.

Sources

Victim site https://www.ntmwd.com

Source

Indexed 2 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.