Disclosure context

About LockBit

LockBit is a highly prolific ransomware group that emerged in October 2020 and has become one of the most active ransomware operations globally, with over 3,500 documented victims and a primary motivation of financial gain through extortion. The group is suspected to originate from Russia and operates as a Ransomware-as-a-Service (RaaS) model, recruiting affiliates to conduct attacks while providing them with ransomware tools, infrastructure, and support. LockBit primarily gains initial access through exploiting vulnerabilities in public-facing applications, credential stuffing attacks, and phishing campaigns, employing double extortion tactics where they steal sensitive data before encrypting systems and threatening to leak the information if ransom demands are not met. The group has demonstrated significant technical sophistication, developing multiple variants including LockBit 3.0 (also known as LockBit Black), and has been particularly active in targeting business services, manufacturing, technology, and healthcare sectors across the United States, France, Germany, United Kingdom, and Italy. Despite ongoing law enforcement efforts and international cooperation to disrupt their operations, including seizures of infrastructure and arrests of affiliates, LockBit has shown resilience and adaptability, continuing to operate and evolve their tactics while maintaining their position as one of the most dominant ransomware threats in the cybercriminal landscape. The group has been linked to 3,536 public disclosures across our corpus. First observed on a leak site on October 21, 2020; most recent post March 30, 2026. The operation is currently active.

Also tracked as: LockBit 3.0, LockBit Black, LockBit Green, ABCD ransomware.

Timeline of this disclosure

February 23, 2026yfynqygs.com listed by LockBiton the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, yfynqygs.com is reported in China, a country with 29 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

← All victims

Yunan County Qingyuan Water Supply Co., Ltd.

listed as yfynqygs.com · Claimed by LockBit · listed 3 months ago

Age

since listed · data leaked

Status timeline

Listed
Feb 23, 2026
Data leaked

At a glance

Group: LockBit
Status: Data leaked
Country: China
Sector: Not Found
Listed on leak site: Feb 23, 2026

About the victim

AI dossier — public-source company profile

Yunan County Qingyuan Water Supply Co., Ltd. is a water supply utility company located in Yunan County, Yunfu City, Guangdong Province, China. The company is responsible for the provision and distribution of water services to the local county population. It operates as a regional public utility infrastructure provider.

Industry: Water Supply & Distribution Utilities
Address: Yunan County, Yunfu City, Guangdong Province, China

Attack summary

Severity: high — The victim is a public water supply utility — critical infrastructure — and the data has been published by LockBit, confirming exfiltration. Attacks on water utilities carry inherent critical-infrastructure risk, and confirmed data publication elevates severity to high; critical would require confirmed exfiltration of regulated PII or medical/financial data at scale, which is not confirmed here.

LockBit claims to have attacked Yunan County Qingyuan Water Supply Co., Ltd. and has published data from the victim, indicating exfiltration of company data; the disclosed status is 'data_published' with no ransom amount stated.

high

Data the group says was taken

AI dossier — extracted from the leak post

Internal company data

What the group claims

http://wx.yfynqygs.com/ Yunan County Qingyuan Water Supply Co., Ltd., located in Yunfu City, Guangd...

Sources

Victim siteyfynqygs.com

Source

Indexed 3 months 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.