Disclosure context

About Revil

REvil, also known as Sodinokibi, was a highly sophisticated ransomware-as-a-service operation that emerged in April 2019 and quickly became one of the most prolific and financially successful cybercriminal organizations, primarily motivated by financial gain. The group is believed to have originated from Russia, operating as a RaaS model where core developers rented their ransomware tools to affiliate criminals, and maintained connections to the now-defunct GandCrab ransomware operation with some researchers suggesting personnel overlap. REvil primarily gained initial access through exploiting vulnerabilities in remote desktop protocol implementations, phishing campaigns, and supply chain attacks, employing double extortion tactics where they exfiltrated sensitive data before encryption and threatened to publish it on their "Happy Blog" leak site if ransoms were not paid, using advanced encryption methods that made file recovery nearly impossible without payment. The group conducted several high-profile attacks including the devastating supply chain attack against Kaseya in July 2021 that affected thousands of downstream customers, attacks on major corporations like JBS Foods, and demanded ransoms reaching up to $70 million, ultimately leading to increased law enforcement attention and pressure from international authorities. Following coordinated law enforcement actions and mounting pressure from the U.S. and Russian governments in late 2021, REvil's infrastructure was taken down and the group ceased operations, with several suspected members reportedly arrested by Russian authorities. The group has been linked to 96 public disclosures across our corpus. First observed on a leak site on August 26, 2019; most recent post November 28, 2022. The operation is currently inactive.

Also tracked as: Sodinokibi.

Timeline of this disclosure

November 28, 2022kusd.edu listed by Revilon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 694 disclosures indexed across all operators we track. Geographically, kusd.edu 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

← All victims

Kenosha Unified School District

listed as kusd.edu · Claimed by Revil · listed 3 years ago

42m

Age

since listed · data leaked

Status timeline

Listed
Nov 28, 2022
Data leaked

At a glance

Group: Revil
Status: Data leaked
Country: United States
Sector: Education
Listed on leak site: Nov 28, 2022

About the victim

AI dossier — public-source company profile

Kenosha Unified School District (KUSD) is a public K-12 school district based in Kenosha, Wisconsin, serving students from early childhood through high school. The district operates multiple schools and programs including early education, elementary, middle, and high schools, as well as special education, fine arts, athletics, and career and technical education. KUSD also manages food services, transportation, human resources, and community programs across the Kenosha area.

Industry: K-12 Public Education
Address: Kenosha, Wisconsin, United States

Attack summary

Severity: critical — A public school district holds large volumes of regulated data including minor students' PII, special education (IDEA-protected) records, HR/employee records, and financial data. The status is data_published, confirming exfiltration and public release of sensitive information at scale.

The REvil ransomware group claims to have attacked Kenosha Unified School District, with the disclosure status recorded as data_published, indicating exfiltrated data has been released. No specific details of the data volume or ransom demand were captured in the leak post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Student records
Employee/HR records
Financial records
Family and community program data
Special education records
Personnel and background check data

Sources

Victim sitekusd.edu

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.