Disclosure context

About nova

Based on the limited available data, Nova is a recently emerged ransomware operation first observed in April 2025 with an apparent financial motivation, having targeted approximately 95 victims in its brief operational period. The group's origin and potential affiliations remain undocumented by major security firms, though their targeting pattern suggests a broad opportunistic approach rather than geopolitically motivated attacks. Nova's attack methodology and specific technical capabilities have not been publicly detailed by established threat intelligence sources, though their victim distribution across the United States, France, Brazil, Singapore, and the Netherlands indicates either automated widespread targeting or access to diverse initial compromise vectors. The group has demonstrated a preference for targeting healthcare, technology, manufacturing, and education sectors, suggesting they may focus on organizations with critical operational dependencies that increase pressure for ransom payment. Given the group's recent emergence and limited public documentation by major security researchers, Nova's current operational status, organizational structure, and long-term threat trajectory remain largely uncharacterized in established threat intelligence reporting. The group has been linked to 118 public disclosures across our corpus. First observed on a leak site on April 28, 2025; most recent post May 21, 2026. The operation is currently active.

Timeline of this disclosure

April 5, 2026M&K Foam Koło listed by novaon the group's public leak site

Data size: 10 GB

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, M&K Foam Koło is reported in PL, a country with 8 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

M&K Foam Koło

Claimed by nova · listed 2 months ago

10 GB

Data size

45d

Age

since listed · data leaked

Status timeline

Listed
Apr 5, 2026
Data leaked

At a glance

Group: nova
Status: Data leaked
Country: PL
Sector: Manufacturing
Listed on leak site: Apr 5, 2026
Data size: 10 GB

About the victim

AI dossier — public-source company profile

M&K Foam Koło is a Polish manufacturer specializing in sleep products such as mattresses and beds, operating under the domain mkfoam.pl. The company is based in Koło, Poland. No further details on scale or employee count are available from the leak post or public site.

Industry: Sleep Products & Mattress Manufacturing

Attack summary

Severity: high — Data has been confirmed as published (60 GB exfiltrated and leaked), indicating significant exfiltration of business data from the company, though the specific content of the data is not detailed beyond a broad 'Business services' classification.

The Nova ransomware group claims to have exfiltrated and published 60 GB of data belonging to M&K Foam Koło after the company did not respond to contact attempts.

high

Data the group says was taken

AI dossier — extracted from the leak post

Business data (60 GB published)

What the group claims

mkfoam.pl is the official website of M&K Foam Koło, a Polish manufacturer that specializes in sleep products like mattresses and beds - corp get in touch with us, thanks.

The leak post

captured from the group's site

Nova Blog NOVA Blog | PGP/Contact | Affiliate Program | AI-Assist Agent | Department of Support MAY 07, 2026 Desysweb Desysweb is a comprehensive technology solutions integrator specializing in telecommunications and IT services, including managed services and a Security Operation Center. With over 200 clients and more than 13 years of experience, they offer personalized consulting, high-quality materials, and competitive pricing. The company is ISO 27001:2022 certified, ensuring robust information security and data protection. Desysweb operates nationally with a presence in eight provinces and is committed to delivering tailored projects and 24/7 customer support through a team of certified engineers. - Los sistemas de la empresa están encriptados con más de 60 mil archivos en múltiples servidores. Tienes tiempo de contactarte con nuestro departamento a través de los canales indicados en el archivo de recuperación que está dentro de los sistemas encriptados. Una vez que termine la cuenta regresiva, ya no será posible recuperar la información y tus datos se perderán. Estamos listos para desencriptar cada uno de los archivos. Contáctanos cuanto antes. Business Services Software Test…

Screenshot of the leak post

Sources

Leak posthttp://novadmrkp4vbk2padk5t6pbxolndceuc7hrcq4mjaoyed6nxsqiuzyyd.onion/m-k-foam-koo

Source

Indexed 2 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.