Was SistNet hit by ransomware?

SistNet was listed by the nova ransomware operation (Italy), 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 nova ransomware group?

nova 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 SistNet breach?

nova published data attributed to SistNet. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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SistNet

Claimed by Nova · listed 4 days ago

Age

since listed · data leaked

Status timeline

ListedJul 25, 2026
Data leakeddate unknown

At a glance

Group: Nova
Status: Data leaked
Country: Italy
Listed on leak site: Jul 25, 2026

About the victim

AI dossier — public-source company profile

Sistnet is a division of Sistemi Tre s.r.l., an Italian ICT company specializing in comprehensive cybersecurity and communication technology solutions for small and medium-sized enterprises. They provide advanced security products including EDR-X antivirus, networking, unified communications, cloud backup, and managed security services (MDR/NIS2 compliance support).

Industry: Information and Communication Technology (ICT) / Cybersecurity Solutions
Address: Corso Canale 52/C, Alba (CN), Italy

Attack summary

Severity: high — Confirmed data exfiltration claimed by threat actor with demonstrated capability to access systems; company operates in critical cybersecurity sector serving SMEs, making their compromise significant. However, no specific data types (PII at scale, financial records, etc.) have been publicly detailed yet, and no proof files are currently visible in the leak post.

Nova claims to have exfiltrated data from Sistnet and offers decryption samples to demonstrate access. The group states they will provide stolen data samples and decryption proof when contacted via the company's support department.

high

Data the group says was taken

AI dossier — extracted from the leak post

business/operational data
customer information
system configurations

What the group claims

Sistnet, a division of Sistemi Tre s.r.l., offers comprehensive solutions in Information and Communication Technology, focusing on transforming products into services. Their offerings include advanced security solutions like EDR-X antivirus, networking, unified communication, and internet services such as cloud backup and email. They aim to protect small and medium-sized enterprises from cyber threats, emphasizing the importance of cybersecurity. With a commitment to high-quality service and innovative partnerships, Sistnet provides tailored support and monitoring for their clients - Nova Provide tree and samples from stolen data and decrypt sample to the company when its get in touch with support department.

Sources

Victim sitesistnet.it
Leak posthttp://pifk3xu3vad6cuxsjll4qjomyaaaoyvnyqppro75pazadzctrrvpdnyd.onion/sistnet

Source

Indexed 4 days 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 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 203 public disclosures across our corpus. First observed on a leak site on April 28, 2025; most recent post July 25, 2026. The operation is currently active.

Timeline of this disclosure

July 25, 2026SistNet listed by novaon the group's public leak site

Other recent disclosures by nova

nova has been linked to 203 public victims on Darkfield. A sample of the most recent:

See the full nova dossier →

Sector and geography

Geographically, SistNet is reported in Italy, a country with 203 ransomware disclosures in our corpus.

If your organisation is affected

A listing by nova means SistNet 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.
Report the incident to your national CERT, CSIRT Italia (Italy), as required for your jurisdiction.
Monitor for the data appearing on nova'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.