Was Precon Marine, Inc. hit by ransomware?

Precon Marine, Inc. was listed by the netrunner ransomware operation as a victim being extorted; data had not been published at the time of listing. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the netrunner ransomware group?

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

Ransomware victim disclosure

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Precon Marine, Inc.

Claimed by Netrunner · listed 4 hours ago

Today

Age

since listed · listed for ransom

Status timeline

ListedOct 4, 2026

Current state: Listed for ransom

At a glance

Group: Netrunner
Status: Listed for ransom
Sector: Construction
Listed on leak site: Oct 4, 2026

About the victim

AI dossier — public-source company profile

Precon Marine, Inc. is a diversified marine contractor specializing in heavy marine construction and advanced subsea services.

Industry: Marine Construction & Subsea Services

Attack summary

Severity: low — Listing only with no proof files, no operational impact stated, and no confirmed data compromise or encryption details provided for this victim.

The leak post lists Precon Marine among multiple victims but provides no detail on attack method, data exfiltration, encryption, or impact specific to this company.

low

What the group claims

A diversified marine contractor specializing in heavy marine construction and advanced subsea services.

The leak post

captured from the group's site

Precon Marine, Inc. is a diversified marine contractor specializing in heavy marine construction and advanced subsea services. 
Main Place is part of a mixed development that combines residence, leisure, retail and dining to bring you the ultimate city-suburban lifestyle. 
Seoyon E‑Hwa Summit is a subsidiary of Seoyon E‑Hwa that manufactures automotive components, operating as part of Seoyon E‑Hwa’s international production network. 
GEG srl (est. 1981) designs and builds integrated mobile radio systems across Italy. Over 35 years it served 500+ public administrations and manages 100,000+ radios. Since 2004 it is Italy’s exclusive DAMM TETRA distributor. It held ~60% of the civilian TETRA market (350+ base stations) 
Shiramume Hospital is a regional general hospital in Japan providing comprehensive inpatient and outpatient care. It offers services in internal medicine, surgery, emergency care, obstetrics/gynecology, and rehabilitation, supported by diagnostic imaging and laboratory facilities. 
Nippon Medical School Musashi Kosugi Hospital 
Nippon Medical School Musashi Kosugi Hospital is a 372-bed regional teaching hospital in Nakahara-ku, Kawasaki (Musashi-Kosugi area), affiliate…

Screenshot of the leak post

Sources

Leak posthttp://netrunrsb3bivj5gnwajzxlig5qkteb6edgthxj7fmsvhkzxtwfxwaad.onion

Source

Indexed 4 hours 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 netrunner

Based on the limited publicly available information, netrunner is a relatively new ransomware group that first emerged in April 2026 with documented attacks against at least six organizations. The group appears to be financially motivated, targeting a diverse range of sectors including healthcare, consumer services, telecommunications, manufacturing, and agriculture across multiple countries including Japan, the United States, Jordan, Italy, and South Korea. Due to the recent emergence of this group and limited public reporting from established threat intelligence sources, detailed information about their country of origin, operational affiliations, specific attack methodologies, encryption techniques, or whether they operate as a Ransomware-as-a-Service model remains undocumented by major cybersecurity organizations such as CISA, FBI, or Mandiant. The group's targeting pattern suggests opportunistic victim selection rather than geopolitically motivated attacks, given the broad geographic and sectoral distribution of their documented victims. No major high-profile campaigns or significant law enforcement actions against netrunner have been publicly reported by reputable security researchers at this time. Given the group's recent emergence in 2026, current activity status and operational capabilities require further monitoring and analysis by the cybersecurity community. The group has been linked to 15 public disclosures across our corpus. First observed on a leak site on April 3, 2026; most recent post October 4, 2026. The operation is currently active.

Timeline of this disclosure

October 4, 2026Precon Marine, Inc. listed by netrunner on the group's public leak site

Other recent disclosures by netrunner

netrunner has been linked to 15 public victims on Darkfield. A sample of the most recent:

See the full netrunner dossier →

Sector and geography

This disclosure adds to ransomware activity in the Construction sector, which has 988 disclosures indexed across all operators we track.

If your organisation is affected

A listing by netrunner means Precon Marine, Inc. appeared on a ransomware extortion site and is being pressured to pay before any publication. 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 netrunner'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.