Was denmark.k12.wi.us hit by ransomware?

denmark.k12.wi.us was listed by the Incransom ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Incransom ransomware group?

Incransom is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the denmark.k12.wi.us breach?

Incransom published data attributed to denmark.k12.wi.us. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

Denmark School District

listed as denmark.k12.wi.us · Claimed by Incransom · listed 3 months ago

$18.2M

Ransom

demanded

Age

since listed · data leaked

Status timeline

ListedMar 1, 2026
Data leakeddate unknown

At a glance

Group: Incransom
Status: Data leaked
Country: United States
Sector: Education
Listed on leak site: Mar 1, 2026
Ransom demanded: $18.2M
Estimated revenue: $18.2M

About the victim

AI dossier — public-source company profile

Denmark School District (denmark.k12.wi.us) is a public K-12 school district headquartered in Denmark, Wisconsin. It employs approximately 100–249 staff and serves the local community's elementary through high school student population. The district operates under Wisconsin public school regulations.

Industry: K-12 Public Education
Address: Denmark, Wisconsin, United States
Employees: 100-249

Attack summary

Severity: high — The attack targets a K-12 public school district with confirmed data publication status, meaning student and employee PII — including potentially minors' records — has likely been exfiltrated and published. Educational institutions handling minor student data represent a sensitive regulated-data environment (FERPA), elevating severity to high.

The Incransom group claims to have attacked Denmark School District and has published data from the victim, with the ransom demand stated at $18.2 million. The post indicates data disclosure has occurred, though the specific volume of exfiltrated data was not stated.

high

Data the group says was taken

AI dossier — extracted from the leak post

Employee records
Student records
Financial data
Contact information

What the group claims

Denmark High School is a company that employs 100to249 people and has 10Mto25M of revenue. The company is headquartered in Denmark, Wisconsin. Employees: 200 Revenue: $18.2 Million Industry: Education Phone Number: (920) 863-4200

Sources

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.

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Disclosure context

About Incransom

Incransom is a ransomware group that emerged in August 2023, operating with primarily financial motivations as evidenced by their targeting of high-value sectors across multiple developed nations. The group's origin and specific affiliations remain undocumented by major threat intelligence organizations, though their operational patterns suggest they likely operate independently rather than as a ransomware-as-a-service model. With 734 documented victims, Incransom has demonstrated a preference for targeting organizations in the United States, Canada, United Kingdom, Germany, and Australia, with particular focus on healthcare, technology, business services, and manufacturing sectors, though their attack methodology and specific technical capabilities have not been extensively documented by established security researchers or government agencies. The group's notable campaigns and specific high-profile victims have not been publicly detailed by CISA, FBI, Mandiant, or other reputable threat intelligence sources, suggesting either operational security effectiveness or limited visibility into their most significant operations. Based on available intelligence, Incransom appears to remain active as of recent reporting periods, though comprehensive analysis of their current operational status requires additional documentation from established threat intelligence sources. The group has been linked to 829 public disclosures across our corpus. First observed on a leak site on August 9, 2023; most recent post June 11, 2026. The operation is currently active.

Also tracked as: inc ransom.

Timeline of this disclosure

March 1, 2026denmark.k12.wi.us listed by Incransomon the group's public leak site

Ransom demanded: $18.2M

Other recent disclosures by Incransom

Incransom has been linked to 829 public victims on Darkfield. A sample of the most recent:

See the full Incransom dossier →

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 694 disclosures indexed across all operators we track. Geographically, denmark.k12.wi.us is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Incransom means denmark.k12.wi.us appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Monitor for the data appearing on Incransom's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.