Disclosure context

About Nokoyawa

Nokoyawa is a ransomware group that emerged in December 2022, operating with primarily financial motivations and targeting organizations across multiple sectors including healthcare, non-profit, education, finance, and energy. The group has claimed at least 36 victims since its emergence, with attacks predominantly focused on the United States, Canada, United Kingdom, France, and the Philippines. While detailed technical analysis of Nokoyawa's operations remains limited in public reporting, the group appears to follow conventional ransomware tactics targeting critical infrastructure and essential services sectors. Their targeting of healthcare and educational institutions suggests they operate without the sector restrictions that some other ransomware groups have adopted. Notable campaigns include attacks across their preferred geographic regions, though specific high-profile incidents have not been extensively documented in public threat intelligence reporting from major security firms. As of current reporting, Nokoyawa appears to remain an active threat, though the group's relatively recent emergence means long-term operational patterns and potential law enforcement disruption efforts are still developing. The group has been linked to 36 public disclosures across our corpus. First observed on a leak site on December 9, 2022; most recent post October 8, 2023. The operation is currently inactive.

Timeline of this disclosure

July 29, 2023One Health Solutions listed by Nokoyawaon 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, One Health Solutions 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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One Health Solutions

Claimed by Nokoyawa · listed 3 years ago

34m

Age

since listed · data leaked

Status timeline

Listed
Jul 29, 2023
Data leaked

At a glance

Group: Nokoyawa
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Jul 29, 2023

About the victim

AI dossier — public-source company profile

One Health Solutions is a healthcare technology platform described as a partnership between healthcare and technology industry professionals from around the world. It positions itself as a pioneering platform built by a large, globally distributed team sharing a common vision for improving healthcare access and delivery. No further operational details are publicly available from the site excerpt provided.

Industry: Healthcare Technology Platform

Attack summary

Severity: critical — The victim operates in the healthcare sector handling sensitive health-related data; the disclosure status is 'data_published', confirming exfiltration and public release of data that likely includes regulated PII and/or protected health information (PHI) subject to HIPAA.

Nokoyawa claims to have compromised One Health Solutions and has published data ('disclosed status: data_published'), indicating confirmed exfiltration of company data, though the specific volume and nature of the exfiltrated files are not detailed in the post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Internal company documents
Potentially patient or client health records
Employee or personnel data
Business operational data

What the group claims

ONE HEALTH is a pioneering healthcare platform that is the result of a unique partnership between a group of visionaries from the healthcare and technology industry, spearheaded by professionals from around the world and built by thousands of individuals who sharethe belief that healthcare is truly...

Sources

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.