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 20, 2023Tampa General Hospital 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, Tampa General Hospital 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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Tampa General Hospital

Claimed by Nokoyawa · listed 3 years ago

34m

Age

since listed · data leaked

Status timeline

Listed
Jul 20, 2023
Data leaked

At a glance

Group: Nokoyawa
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Jul 20, 2023

About the victim

AI dossier — public-source company profile

Tampa General Hospital is a private not-for-profit academic health system and one of the largest hospitals in Florida, licensed for 1,040 beds and serving a dozen counties in West Central Florida with a population exceeding 4 million. It operates a comprehensive range of specialty institutes including cancer, transplant, cardiac, neuroscience, and children's services. As Florida's premier academic health system, it also supports medical education, clinical research, and innovation programs.

Industry: Hospital & Acute Care Health Services
Address: 1 Tampa General Circle, Tampa, FL 33606
Employees: 7000+
Founded: 1927

Attack summary

Severity: critical — Tampa General Hospital is a large academic medical center; a confirmed data publication by a ransomware group almost certainly involves regulated PII and protected health information (PHI) at significant scale, qualifying as exfiltration of medical/sensitive data affecting potentially millions of patients across a 12-county service area.

The Nokoyawa ransomware group claims to have compromised Tampa General Hospital and has published data (disclosed status: data_published), indicating exfiltration of sensitive hospital and patient-related information. No ransom amount was stated and no specific data volume was disclosed in the post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Patient records
Medical records
Employee personal information
Hospital administrative data
Billing and insurance information
Healthcare professional credentials

What the group claims

Tampa General Hospital is a private not-for-profit hospital and one of the most comprehensive medical facilities in West Central Florida serving a dozen counties with a population in excess of 4 million. As one of the largest hospitals in Florida, Tampa General is licensed for 1,040...

Sources

Victim sitetgh.org/
Leak posthttp://nokoleakb76znymx443veg4n6fytx6spck6pc7nkr4dvfuygpub6jsid.onion/leak/64b958aff6451b16e053bb73

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.