Was Zanzi hit by ransomware?

Zanzi was listed by the thegentlemen 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 thegentlemen ransomware group?

thegentlemen 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 Zanzi breach?

thegentlemen published data attributed to Zanzi. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

Zanzi S.p.A.

listed as Zanzi · Claimed by Thegentlemen · listed 2 months ago

Age

since listed · data leaked

Status timeline

ListedApr 4, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Italy
Listed on leak site: Apr 4, 2026

About the victim

AI dossier — public-source company profile

Zanzi S.p.A. is an Italian engineering company founded in 1920 by Giovanni Zanzi in Ivrea, Turin. The company is recognized as a global leader in high-performance valve manufacturing for engines, serving the aeronautical, motor racing, motorbike racing, and marine diesel sectors. Its product range includes mono- and bi-metallic intake/exhaust valves and sodium-cooled hollow valves, a technology it invented and patented in the 1930s.

Industry: High-Performance Valve Manufacturing (Aerospace & Motorsport)
Address: Ivrea, Turin, Italy
Founded: 1920

Attack summary

Severity: high — Data has been published (data_published status), indicating confirmed exfiltration rather than a mere listing. The victim is an industrial engineering firm with involvement in aeronautical and defence-adjacent sectors; compromise of proprietary engineering data (including patented valve technologies serving aerospace/military markets) represents significant business and potentially strategic data exposure.

The group 'thegentlemen' claims to have compromised Zanzi S.p.A. and has published data (disclosed status: data_published), though the specific nature of the attack (encryption, exfiltration, or both) and the volume of exfiltrated data are not detailed in the leak post.

high

What the group claims

zanzi.com rocketreach.co/zanzi-spa-profile_b420e827fee433b4 Zanzi S.p.A. is an Italian engineering company founded in 1920 by Giovanni Zanzi in Ivrea, Turin, recognized as a global leader in high-performance valve manufacturing for engines. The company serves the aeronautical, motor racing, motorbike racing, and marine diesel sectors, producing mono- and bi-metallic intake/exhaust valves and sodium-cooled hollow valves — a technology they invented and patented in the 1930s

Sources

Victim sitezanzi.com

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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 483 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post June 11, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

April 4, 2026Zanzi listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 483 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

Geographically, Zanzi is reported in Italy, a country with 195 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Zanzi 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 thegentlemen'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.